{ "events": [ { "id": "1ff0215dcef0c6d9", "received_at": "2026-10-24T18:30:52.620287814Z", "method": "POST", "path": "/decision-adapter", "source": { "remote_addr": "10.250.0.53", "forwarded_for": "160.79.106.137", "user_agent": "anthropic-dlp/1", "host": "de-528bd20d2f1348d99e83da208cf9b045.ecs.us-east-1.on.aws" }, "headers": { "Accept": [ "*/*" ], "Accept-Encoding": [ "identity" ], "Content-Length": [ "78578" ], "Content-Type": [ "application/json" ], "User-Agent": [ "anthropic-dlp/1" ], "Webhook-Id": [ "chatcompl_011CgMYCRcRqqppUvQQKAd2r" ], "Webhook-Signature": [ "v1,FnvB0rf3IvvQheS5fBJjQFhGV5cVfShf+SHBqLn4css=" ], "Webhook-Timestamp": [ "1792866652" ], "X-Amzn-Trace-Id": [ "Root=1-6adcf95c-54a8587c28d92189420230a0" ], "X-Forwarded-For": [ "160.79.106.137" ], "X-Forwarded-Port": [ "443" ], "X-Forwarded-Proto": [ "https" ] }, "body": { "type": "prompt", "tenant_id": "fe104aca-3a38-4975-8d93-9976244f5cc6", "session_id": "8776ccf1-2176-4d48-8fa4-bc19224c5777", "request_id": "chatcompl_011CgMYCRcRqqppUvQQKAd2r", "model": "claude-sonnet-5-5", "actor": { "type": "user", "id": "user_01PKaEEdsQ3sdpk7Rx4kXUTb", "email_address": "naveen.tulsi@saviynt.com" }, "source": { "application": "claude-ai" }, "metadata": {}, "messages": [ { "role": "user", "content": [ { "type": "text", "text": "```markdown\nLets build a micro service in Go, which can receive request from Claude Inference hook.\nThe endpoint should be named - /decision-adapter\nIt should log the request headers and the source of the request.\nWe want to send the data received from claude to our PDP endpoint. Please create empty struts for that.\n\n\nLets have one endpoint, which would expose the last 10 events received by the base path of the service. This should be a cache, and clear after 24 hours of no events. Cache shall hold only last 10 events with the oldest getting out first.\n```" } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_0155JG558NoPqScQNCof2Rvi", "tool_name": "bash_tool", "input": { "command": "which go \u0026\u0026 go version; mkdir -p /home/claude/decision-adapter", "description": "Check Go availability and create project dir" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_0155JG558NoPqScQNCof2Rvi", "tool_name": "bash_tool", "content": "{\"returncode\":0,\"stdout\":\"\",\"stderr\":\"\"}", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01Wqx8U2pYbdX95mWxRJkesJ", "tool_name": "bash_tool", "input": { "command": "cd /home/claude/decision-adapter\ncat \u003e go.mod \u003c\u003c'EOF'\nmodule decision-adapter\n\ngo 1.22\nEOF\n\ncat \u003e models.go \u003c\u003c'EOF'\npackage main\n\nimport (\n\t\"encoding/json\"\n\t\"time\"\n)\n\n// SourceInfo describes where a request came from.\ntype SourceInfo struct {\n\tRemoteAddr string `json:\"remote_addr\"`\n\tForwardedFor string `json:\"forwarded_for,omitempty\"`\n\tRealIP string `json:\"real_ip,omitempty\"`\n\tUserAgent string `json:\"user_agent,omitempty\"`\n\tHost string `json:\"host,omitempty\"`\n\tOrigin string `json:\"origin,omitempty\"`\n\tReferer string `json:\"referer,omitempty\"`\n}\n\n// Event is a single request received from the Claude inference hook.\ntype Event struct {\n\tID string `json:\"id\"`\n\tReceivedAt time.Time `json:\"received_at\"`\n\tMethod string `json:\"method\"`\n\tPath string `json:\"path\"`\n\tSource SourceInfo `json:\"source\"`\n\tHeaders map[string][]string `json:\"headers\"`\n\t// Body is stored verbatim. The Claude hook payload schema is not\n\t// modelled yet, so we keep it as raw JSON (or a JSON string if the\n\t// payload was not valid JSON).\n\tBody json.RawMessage `json:\"body\"`\n}\nEOF\n\ncat \u003e pdp.go \u003c\u003c'EOF'\npackage main\n\nimport (\n\t\"context\"\n\t\"encoding/json\"\n)\n\n// PDPRequest is the payload sent to the Policy Decision Point.\n// TODO: define fields once the PDP contract is agreed.\ntype PDPRequest struct{}\n\n// PDPResponse is the decision returned by the Policy Decision Point.\n// TODO: define fields once the PDP contract is agreed.\ntype PDPResponse struct{}\n\n// PDPClient forwards data to the PDP endpoint.\ntype PDPClient struct {\n\t// BaseURL of the PDP, e.g. https://pdp.internal/v1/decide\n\tBaseURL string\n}\n\nfunc NewPDPClient(baseURL string) *PDPClient {\n\treturn \u0026PDPClient{BaseURL: baseURL}\n}\n\n// Evaluate sends the request to the PDP and returns its decision.\n// TODO: implement the HTTP call (auth, timeouts, retries) once the PDP\n// contract is defined. Currently a no-op stub.\nfunc (c *PDPClient) Evaluate(ctx context.Context, req PDPRequest) (*PDPResponse, error) {\n\treturn \u0026PDPResponse{}, nil\n}\n\n// BuildPDPRequest maps a raw Claude hook event into a PDPRequest.\n// TODO: map fields from the Claude payload once both schemas are known.\nfunc BuildPDPRequest(e Event) PDPRequest {\n\t_ = json.RawMessage(e.Body) // placeholder: payload will be parsed here\n\treturn PDPRequest{}\n}\nEOF\n\ncat \u003e cache.go \u003c\u003c'EOF'\npackage main\n\nimport (\n\t\"sync\"\n\t\"time\"\n)\n\n// EventCache keeps the most recent N events (oldest evicted first) and\n// clears itself after ttl has elapsed with no new events.\ntype EventCache struct {\n\tmu sync.Mutex\n\tevents []Event // oldest -\u003e newest\n\tmax int\n\tttl time.Duration\n\ttimer *time.Timer\n}\n\nfunc NewEventCache(max int, ttl time.Duration) *EventCache {\n\treturn \u0026EventCache{\n\t\tevents: make([]Event, 0, max),\n\t\tmax: max,\n\t\tttl: ttl,\n\t}\n}\n\n// Add stores an event, evicting the oldest if full, and resets the\n// inactivity timer.\nfunc (c *EventCache) Add(e Event) {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tif len(c.events) \u003e= c.max {\n\t\t// Drop the oldest (copy down to avoid retaining the old backing slot).\n\t\tcopy(c.events, c.events[1:])\n\t\tc.events = c.events[:len(c.events)-1]\n\t}\n\tc.events = append(c.events, e)\n\n\tif c.timer != nil {\n\t\tc.timer.Stop()\n\t}\n\tc.timer = time.AfterFunc(c.ttl, c.clear)\n}\n\n// List returns a copy of the cached events, newest first.\nfunc (c *EventCache) List() []Event {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tout := make([]Event, len(c.events))\n\tfor i, e := range c.events {\n\t\tout[len(c.events)-1-i] = e\n\t}\n\treturn out\n}\n\nfunc (c *EventCache) clear() {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\tc.events = c.events[:0]\n\tc.timer = nil\n}\n\n// Stop cancels the pending expiry timer (for graceful shutdown).\nfunc (c *EventCache) Stop() {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\tif c.timer != nil {\n\t\tc.timer.Stop()\n\t\tc.timer = nil\n\t}\n}\nEOF\n\ncat \u003e main.go \u003c\u003c'EOF'\npackage main\n\nimport (\n\t\"context\"\n\t\"crypto/rand\"\n\t\"encoding/hex\"\n\t\"encoding/json\"\n\t\"errors\"\n\t\"io\"\n\t\"log\"\n\t\"net\"\n\t\"net/http\"\n\t\"os\"\n\t\"os/signal\"\n\t\"strings\"\n\t\"syscall\"\n\t\"time\"\n)\n\nconst (\n\tmaxEvents = 10\n\tcacheTTL = 24 * time.Hour\n\tmaxBodyBytes = 1 \u003c\u003c 20 // 1 MiB\n)\n\n// Headers whose values must never be logged or cached in clear text.\nvar sensitiveHeaders = map[string]bool{\n\t\"Authorization\": true,\n\t\"Proxy-Authorization\": true,\n\t\"Cookie\": true,\n\t\"X-Api-Key\": true,\n}\n\ntype server struct {\n\tcache *EventCache\n\tpdp *PDPClient\n}\n\nfunc main() {\n\ts := \u0026server{\n\t\tcache: NewEventCache(maxEvents, cacheTTL),\n\t\tpdp: NewPDPClient(os.Getenv(\"PDP_URL\")),\n\t}\n\n\tmux := http.NewServeMux()\n\tmux.HandleFunc(\"POST /decision-adapter\", s.handleDecision)\n\tmux.HandleFunc(\"GET /{$}\", s.handleEvents) // base path only\n\n\taddr := \":\" + envOr(\"PORT\", \"8080\")\n\tsrv := \u0026http.Server{\n\t\tAddr: addr,\n\t\tHandler: mux,\n\t\tReadHeaderTimeout: 5 * time.Second,\n\t\tReadTimeout: 15 * time.Second,\n\t\tWriteTimeout: 30 * time.Second,\n\t}\n\n\tgo func() {\n\t\tlog.Printf(\"decision-adapter listening on %s\", addr)\n\t\tif err := srv.ListenAndServe(); err != nil \u0026\u0026 !errors.Is(err, http.ErrServerClosed) {\n\t\t\tlog.Fatalf(\"server error: %v\", err)\n\t\t}\n\t}()\n\n\tstop := make(chan os.Signal, 1)\n\tsignal.Notify(stop, syscall.SIGINT, syscall.SIGTERM)\n\t\u003c-stop\n\n\tctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)\n\tdefer cancel()\n\t_ = srv.Shutdown(ctx)\n\ts.cache.Stop()\n\tlog.Println(\"shutdown complete\")\n}\n\n// POST /decision-adapter\nfunc (s *server) handleDecision(w http.ResponseWriter, r *http.Request) {\n\tbody, err := io.ReadAll(http.MaxBytesReader(w, r.Body, maxBodyBytes))\n\tif err != nil {\n\t\thttp.Error(w, \"unable to read body\", http.StatusRequestEntityTooLarge)\n\t\treturn\n\t}\n\n\tevent := Event{\n\t\tID: newID(),\n\t\tReceivedAt: time.Now().UTC(),\n\t\tMethod: r.Method,\n\t\tPath: r.URL.Path,\n\t\tSource: sourceOf(r),\n\t\tHeaders: redactedHeaders(r.Header),\n\t\tBody: toRawJSON(body),\n\t}\n\n\tlog.Printf(\"event=%s source=%+v headers=%v\", event.ID, event.Source, event.Headers)\n\n\ts.cache.Add(event)\n\n\t// Forward to the PDP (stubbed). The decision is not yet used in the\n\t// response because the hook's expected response schema is not defined.\n\tif _, err := s.pdp.Evaluate(r.Context(), BuildPDPRequest(event)); err != nil {\n\t\tlog.Printf(\"event=%s pdp error: %v\", event.ID, err)\n\t}\n\n\tw.Header().Set(\"Content-Type\", \"application/json\")\n\tw.WriteHeader(http.StatusOK)\n\t_, _ = w.Write([]byte(\"{}\"))\n}\n\n// GET /\nfunc (s *server) handleEvents(w http.ResponseWriter, r *http.Request) {\n\tw.Header().Set(\"Content-Type\", \"application/json\")\n\tenc := json.NewEncoder(w)\n\tenc.SetIndent(\"\", \" \")\n\t_ = enc.Encode(map[string]any{\"events\": s.cache.List()})\n}\n\nfunc sourceOf(r *http.Request) SourceInfo {\n\thost, _, err := net.SplitHostPort(r.RemoteAddr)\n\tif err != nil {\n\t\thost = r.RemoteAddr\n\t}\n\treturn SourceInfo{\n\t\tRemoteAddr: host,\n\t\tForwardedFor: r.Header.Get(\"X-Forwarded-For\"),\n\t\tRealIP: r.Header.Get(\"X-Real-Ip\"),\n\t\tUserAgent: r.UserAgent(),\n\t\tHost: r.Host,\n\t\tOrigin: r.Header.Get(\"Origin\"),\n\t\tReferer: r.Referer(),\n\t}\n}\n\nfunc redactedHeaders(h http.Header) map[string][]string {\n\tout := make(map[string][]string, len(h))\n\tfor k, v := range h {\n\t\tif sensitiveHeaders[http.CanonicalHeaderKey(k)] {\n\t\t\tout[k] = []string{\"[REDACTED]\"}\n\t\t\tcontinue\n\t\t}\n\t\tout[k] = append([]string(nil), v...)\n\t}\n\treturn out\n}\n\n// toRawJSON returns body as-is if it is valid JSON, otherwise wraps it as a JSON string.\nfunc toRawJSON(body []byte) json.RawMessage {\n\ttrimmed := strings.TrimSpace(string(body))\n\tif trimmed == \"\" {\n\t\treturn json.RawMessage(\"null\")\n\t}\n\tif json.Valid(body) {\n\t\treturn json.RawMessage(body)\n\t}\n\tb, _ := json.Marshal(string(body))\n\treturn b\n}\n\nfunc newID() string {\n\tb := make([]byte, 8)\n\t_, _ = rand.Read(b)\n\treturn hex.EncodeToString(b)\n}\n\nfunc envOr(k, def string) string {\n\tif v := os.Getenv(k); v != \"\" {\n\t\treturn v\n\t}\n\treturn def\n}\nEOF\ngofmt -l . 2\u003e/dev/null; ls", "description": "Write Go microservice files" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01Wqx8U2pYbdX95mWxRJkesJ", "tool_name": "bash_tool", "content": "{\"returncode\":0,\"stdout\":\"cache.go\\ngo.mod\\nmain.go\\nmodels.go\\npdp.go\\n\",\"stderr\":\"\"}", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01DcRMioL1qXnD265KUHTN5L", "tool_name": "bash_tool", "input": { "command": "cd /home/claude/decision-adapter \u0026\u0026 mkdir -p /mnt/user-data/outputs \u0026\u0026 cp -r . /mnt/user-data/outputs/decision-adapter \u0026\u0026 ls /mnt/user-data/outputs/decision-adapter", "description": "Copy project to outputs" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01DcRMioL1qXnD265KUHTN5L", "tool_name": "bash_tool", "content": "{\"returncode\":0,\"stdout\":\"cache.go\\ngo.mod\\nmain.go\\nmodels.go\\npdp.go\\n\",\"stderr\":\"\"}", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01AVcz2fafhi6qQQk6e3hfaS", "tool_name": "present_files", "input": { "filepaths": "[\"/mnt/user-data/outputs/decision-adapter/main.go\", \"/mnt/user-data/outputs/decision-adapter/cache.go\", \"/mnt/user-data/outputs/decision-adapter/pdp.go\", \"/mnt/user-data/outputs/decision-adapter/models.go\", \"/mnt/user-data/outputs/decision-adapter/go.mod\"]" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01AVcz2fafhi6qQQk6e3hfaS", "tool_name": "present_files", "content": "\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/main.go\u003c/file_path\u003e\n\u003cname\u003emain\u003c/name\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/cache.go\u003c/file_path\u003e\n\u003cname\u003ecache\u003c/name\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/pdp.go\u003c/file_path\u003e\n\u003cname\u003epdp\u003c/name\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/models.go\u003c/file_path\u003e\n\u003cname\u003emodels\u003c/name\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/go.mod\u003c/file_path\u003e\n\u003cname\u003ego\u003c/name\u003e\n\u003cmime_type\u003eapplication/xml-dtd\u003c/mime_type\u003e\n\u003c/local_resource\u003e\n\n\nThe file cards appear with your reply, and where they sit relative to its text depends on the app the user is reading in; finish the reply with text, and refer to a file by its name, never as above or below.", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "text", "text": "I've written the service, but I haven't compiled or run it. Go isn't installed in my sandbox, so please run `go build` and `go run .` on your side. It uses only the standard library, so there are no dependencies to fetch. It needs Go 1.22 or later for the method-and-pattern routing.\n\n**How it works**\n- **`POST /decision-adapter`**: reads the body (capped at 1 MiB) and logs the request headers and source. The source includes the remote IP, `X-Forwarded-For`, `X-Real-Ip`, user agent, host, origin and referer. It then caches the event, passes it to the PDP stub, and returns `200 {}`.\n- **`GET /`**: returns the cached events as JSON, newest first. The route is exact-match, so it only serves the base path.\n- **Cache (`cache.go`)**: holds at most 10 events and drops the oldest when an 11th arrives. Every new event resets a 24-hour timer, and if no event arrives in that time the cache clears. It is thread-safe.\n- **PDP (`pdp.go`)**: `PDPRequest` and `PDPResponse` are empty structs, as you asked. `PDPClient.Evaluate` and `BuildPDPRequest` are stubs with TODOs. The PDP base URL is read from the `PDP_URL` environment variable.\n- **Config**: `PORT` sets the listen port (default `8080`). The server shuts down gracefully on SIGINT or SIGTERM.\n\n**Choices I made that you may want to change**\n- **Redaction**: `Authorization`, `Cookie`, `Proxy-Authorization` and `X-Api-Key` are replaced with `[REDACTED]` in both the logs and the cache. The `GET /` endpoint is otherwise unauthenticated, so this keeps credentials from leaking through it. The list is `sensitiveHeaders` in `main.go`.\n- **Hook response**: I don't know what response schema the Claude hook expects, so it currently returns an empty `{}` and ignores the PDP decision. Once you define `PDPResponse`, map it into the response in `handleDecision`.\n- **Body storage**: the payload is stored as raw JSON, because the hook's schema isn't modelled yet. A body that isn't valid JSON is stored as a JSON string.\n- **Exposure**: the `GET /` endpoint returns full event bodies. Put it behind auth or an internal-only listener before deploying it anywhere shared." } ] }, { "role": "user", "content": [ { "type": "text", "text": "can you transform this to a proper go project, with a docker file and a read me as well." } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01CSyhovv2jCRnqa816pNHb5", "tool_name": "bash_tool", "input": { "command": "rm -rf /home/claude/da \u0026\u0026 mkdir -p /home/claude/da \u0026\u0026 cd /home/claude/da\nmkdir -p cmd/decision-adapter internal/{config,model,cache,pdp,server}\n\ncat \u003e go.mod \u003c\u003c'EOF'\nmodule github.com/your-org/decision-adapter\n\ngo 1.22\nEOF\n\ncat \u003e internal/model/event.go \u003c\u003c'EOF'\n// Package model holds the domain types shared across the service.\npackage model\n\nimport (\n\t\"encoding/json\"\n\t\"time\"\n)\n\n// SourceInfo describes where a request came from.\ntype SourceInfo struct {\n\tRemoteAddr string `json:\"remote_addr\"`\n\tForwardedFor string `json:\"forwarded_for,omitempty\"`\n\tRealIP string `json:\"real_ip,omitempty\"`\n\tUserAgent string `json:\"user_agent,omitempty\"`\n\tHost string `json:\"host,omitempty\"`\n\tOrigin string `json:\"origin,omitempty\"`\n\tReferer string `json:\"referer,omitempty\"`\n}\n\n// Event is a single request received from the Claude inference hook.\ntype Event struct {\n\tID string `json:\"id\"`\n\tReceivedAt time.Time `json:\"received_at\"`\n\tMethod string `json:\"method\"`\n\tPath string `json:\"path\"`\n\tSource SourceInfo `json:\"source\"`\n\tHeaders map[string][]string `json:\"headers\"`\n\t// Body is stored verbatim. The Claude hook payload schema is not\n\t// modelled yet, so it is kept as raw JSON (or a JSON string if the\n\t// payload was not valid JSON).\n\tBody json.RawMessage `json:\"body\"`\n}\nEOF\n\ncat \u003e internal/config/config.go \u003c\u003c'EOF'\n// Package config loads service configuration from environment variables.\npackage config\n\nimport (\n\t\"fmt\"\n\t\"os\"\n\t\"strconv\"\n\t\"time\"\n)\n\n// Config is the runtime configuration of the service.\ntype Config struct {\n\tPort string // PORT (default \"8080\")\n\tPDPURL string // PDP_URL (default empty)\n\tCacheSize int // CACHE_SIZE (default 10)\n\tCacheTTL time.Duration // CACHE_TTL (default 24h)\n\tMaxBodyBytes int64 // MAX_BODY_BYTES (default 1 MiB)\n\tLogLevel string // LOG_LEVEL: debug|info|warn|error (default \"info\")\n}\n\n// Load reads configuration from the environment, applying defaults.\nfunc Load() (Config, error) {\n\tcfg := Config{\n\t\tPort: envOr(\"PORT\", \"8080\"),\n\t\tPDPURL: os.Getenv(\"PDP_URL\"),\n\t\tCacheSize: 10,\n\t\tCacheTTL: 24 * time.Hour,\n\t\tMaxBodyBytes: 1 \u003c\u003c 20,\n\t\tLogLevel: envOr(\"LOG_LEVEL\", \"info\"),\n\t}\n\n\tif v := os.Getenv(\"CACHE_SIZE\"); v != \"\" {\n\t\tn, err := strconv.Atoi(v)\n\t\tif err != nil || n \u003c 1 {\n\t\t\treturn cfg, fmt.Errorf(\"invalid CACHE_SIZE %q: must be a positive integer\", v)\n\t\t}\n\t\tcfg.CacheSize = n\n\t}\n\tif v := os.Getenv(\"CACHE_TTL\"); v != \"\" {\n\t\td, err := time.ParseDuration(v)\n\t\tif err != nil || d \u003c= 0 {\n\t\t\treturn cfg, fmt.Errorf(\"invalid CACHE_TTL %q: must be a positive duration like 24h\", v)\n\t\t}\n\t\tcfg.CacheTTL = d\n\t}\n\tif v := os.Getenv(\"MAX_BODY_BYTES\"); v != \"\" {\n\t\tn, err := strconv.ParseInt(v, 10, 64)\n\t\tif err != nil || n \u003c 1 {\n\t\t\treturn cfg, fmt.Errorf(\"invalid MAX_BODY_BYTES %q: must be a positive integer\", v)\n\t\t}\n\t\tcfg.MaxBodyBytes = n\n\t}\n\treturn cfg, nil\n}\n\nfunc envOr(key, def string) string {\n\tif v := os.Getenv(key); v != \"\" {\n\t\treturn v\n\t}\n\treturn def\n}\nEOF\n\ncat \u003e internal/cache/cache.go \u003c\u003c'EOF'\n// Package cache provides a small in-memory store of recent events.\npackage cache\n\nimport (\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/model\"\n)\n\n// EventCache keeps the most recent N events (oldest evicted first) and\n// clears itself after ttl has elapsed with no new events.\ntype EventCache struct {\n\tmu sync.Mutex\n\tevents []model.Event // oldest -\u003e newest\n\tmax int\n\tttl time.Duration\n\ttimer *time.Timer\n}\n\n// New creates a cache holding at most max events that expires after ttl\n// of inactivity.\nfunc New(max int, ttl time.Duration) *EventCache {\n\treturn \u0026EventCache{\n\t\tevents: make([]model.Event, 0, max),\n\t\tmax: max,\n\t\tttl: ttl,\n\t}\n}\n\n// Add stores an event, evicting the oldest if full, and resets the\n// inactivity timer.\nfunc (c *EventCache) Add(e model.Event) {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tif len(c.events) \u003e= c.max {\n\t\tcopy(c.events, c.events[1:])\n\t\tc.events = c.events[:len(c.events)-1]\n\t}\n\tc.events = append(c.events, e)\n\n\tif c.timer != nil {\n\t\tc.timer.Stop()\n\t}\n\tc.timer = time.AfterFunc(c.ttl, c.clear)\n}\n\n// List returns a copy of the cached events, newest first.\nfunc (c *EventCache) List() []model.Event {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tout := make([]model.Event, len(c.events))\n\tfor i, e := range c.events {\n\t\tout[len(c.events)-1-i] = e\n\t}\n\treturn out\n}\n\nfunc (c *EventCache) clear() {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\tc.events = c.events[:0]\n\tc.timer = nil\n}\n\n// Stop cancels the pending expiry timer (for graceful shutdown).\nfunc (c *EventCache) Stop() {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\tif c.timer != nil {\n\t\tc.timer.Stop()\n\t\tc.timer = nil\n\t}\n}\nEOF\n\ncat \u003e internal/cache/cache_test.go \u003c\u003c'EOF'\npackage cache\n\nimport (\n\t\"strconv\"\n\t\"testing\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/model\"\n)\n\nfunc ev(id int) model.Event { return model.Event{ID: strconv.Itoa(id)} }\n\nfunc TestEvictsOldestWhenFull(t *testing.T) {\n\tc := New(10, time.Hour)\n\tdefer c.Stop()\n\n\tfor i := 1; i \u003c= 12; i++ {\n\t\tc.Add(ev(i))\n\t}\n\n\tgot := c.List()\n\tif len(got) != 10 {\n\t\tt.Fatalf(\"expected 10 events, got %d\", len(got))\n\t}\n\tif got[0].ID != \"12\" {\n\t\tt.Errorf(\"expected newest first (12), got %s\", got[0].ID)\n\t}\n\tif got[9].ID != \"3\" {\n\t\tt.Errorf(\"expected oldest retained to be 3, got %s\", got[9].ID)\n\t}\n}\n\nfunc TestClearsAfterInactivity(t *testing.T) {\n\tc := New(10, 50*time.Millisecond)\n\tdefer c.Stop()\n\n\tc.Add(ev(1))\n\tif len(c.List()) != 1 {\n\t\tt.Fatal(\"expected 1 event after add\")\n\t}\n\n\ttime.Sleep(200 * time.Millisecond)\n\tif n := len(c.List()); n != 0 {\n\t\tt.Fatalf(\"expected cache to be cleared, got %d events\", n)\n\t}\n}\n\nfunc TestNewEventResetsTTL(t *testing.T) {\n\tc := New(10, 150*time.Millisecond)\n\tdefer c.Stop()\n\n\tc.Add(ev(1))\n\ttime.Sleep(100 * time.Millisecond)\n\tc.Add(ev(2)) // resets the timer\n\ttime.Sleep(100 * time.Millisecond)\n\n\tif n := len(c.List()); n != 2 {\n\t\tt.Fatalf(\"expected 2 events (TTL was reset), got %d\", n)\n\t}\n}\nEOF\n\ncat \u003e internal/pdp/pdp.go \u003c\u003c'EOF'\n// Package pdp contains the client for the Policy Decision Point.\npackage pdp\n\nimport (\n\t\"context\"\n\n\t\"github.com/your-org/decision-adapter/internal/model\"\n)\n\n// Request is the payload sent to the Policy Decision Point.\n// TODO: define fields once the PDP contract is agreed.\ntype Request struct{}\n\n// Response is the decision returned by the Policy Decision Point.\n// TODO: define fields once the PDP contract is agreed.\ntype Response struct{}\n\n// Client forwards data to the PDP endpoint.\ntype Client struct {\n\t// BaseURL of the PDP, e.g. https://pdp.internal/v1/decide\n\tBaseURL string\n}\n\n// NewClient creates a PDP client.\nfunc NewClient(baseURL string) *Client {\n\treturn \u0026Client{BaseURL: baseURL}\n}\n\n// Evaluate sends the request to the PDP and returns its decision.\n// TODO: implement the HTTP call (auth, timeouts, retries) once the PDP\n// contract is defined. Currently a no-op stub.\nfunc (c *Client) Evaluate(ctx context.Context, req Request) (*Response, error) {\n\treturn \u0026Response{}, nil\n}\n\n// BuildRequest maps a raw Claude hook event into a PDP Request.\n// TODO: map fields from the Claude payload once both schemas are known.\nfunc BuildRequest(e model.Event) Request {\n\treturn Request{}\n}\nEOF\n\ncat \u003e internal/server/server.go \u003c\u003c'EOF'\n// Package server wires up the HTTP handlers of the service.\npackage server\n\nimport (\n\t\"crypto/rand\"\n\t\"encoding/hex\"\n\t\"encoding/json\"\n\t\"io\"\n\t\"log/slog\"\n\t\"net\"\n\t\"net/http\"\n\t\"strings\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/cache\"\n\t\"github.com/your-org/decision-adapter/internal/model\"\n\t\"github.com/your-org/decision-adapter/internal/pdp\"\n)\n\n// Headers whose values must never be logged or cached in clear text.\nvar sensitiveHeaders = map[string]bool{\n\t\"Authorization\": true,\n\t\"Proxy-Authorization\": true,\n\t\"Cookie\": true,\n\t\"X-Api-Key\": true,\n}\n\n// Server holds the handler dependencies.\ntype Server struct {\n\tcache *cache.EventCache\n\tpdp *pdp.Client\n\tlog *slog.Logger\n\tmaxBodyBytes int64\n}\n\n// New creates a Server.\nfunc New(c *cache.EventCache, p *pdp.Client, log *slog.Logger, maxBodyBytes int64) *Server {\n\treturn \u0026Server{cache: c, pdp: p, log: log, maxBodyBytes: maxBodyBytes}\n}\n\n// Handler returns the HTTP handler with all routes registered.\nfunc (s *Server) Handler() http.Handler {\n\tmux := http.NewServeMux()\n\tmux.HandleFunc(\"POST /decision-adapter\", s.handleDecision)\n\tmux.HandleFunc(\"GET /{$}\", s.handleEvents) // base path only\n\tmux.HandleFunc(\"GET /healthz\", s.handleHealth)\n\treturn mux\n}\n\n// POST /decision-adapter\nfunc (s *Server) handleDecision(w http.ResponseWriter, r *http.Request) {\n\tbody, err := io.ReadAll(http.MaxBytesReader(w, r.Body, s.maxBodyBytes))\n\tif err != nil {\n\t\thttp.Error(w, \"unable to read body\", http.StatusRequestEntityTooLarge)\n\t\treturn\n\t}\n\n\tevent := model.Event{\n\t\tID: newID(),\n\t\tReceivedAt: time.Now().UTC(),\n\t\tMethod: r.Method,\n\t\tPath: r.URL.Path,\n\t\tSource: sourceOf(r),\n\t\tHeaders: redactedHeaders(r.Header),\n\t\tBody: toRawJSON(body),\n\t}\n\n\ts.log.Info(\"event received\",\n\t\t\"id\", event.ID,\n\t\t\"source\", event.Source,\n\t\t\"headers\", event.Headers,\n\t)\n\n\ts.cache.Add(event)\n\n\t// Forward to the PDP (stubbed). The decision is not yet used in the\n\t// response because the hook's expected response schema is not defined.\n\tif _, err := s.pdp.Evaluate(r.Context(), pdp.BuildRequest(event)); err != nil {\n\t\ts.log.Error(\"pdp evaluation failed\", \"id\", event.ID, \"error\", err)\n\t}\n\n\tw.Header().Set(\"Content-Type\", \"application/json\")\n\tw.WriteHeader(http.StatusOK)\n\t_, _ = w.Write([]byte(\"{}\"))\n}\n\n// GET /\nfunc (s *Server) handleEvents(w http.ResponseWriter, r *http.Request) {\n\tw.Header().Set(\"Content-Type\", \"application/json\")\n\tenc := json.NewEncoder(w)\n\tenc.SetIndent(\"\", \" \")\n\t_ = enc.Encode(map[string]any{\"events\": s.cache.List()})\n}\n\n// GET /healthz\nfunc (s *Server) handleHealth(w http.ResponseWriter, r *http.Request) {\n\tw.WriteHeader(http.StatusOK)\n\t_, _ = w.Write([]byte(\"ok\"))\n}\n\nfunc sourceOf(r *http.Request) model.SourceInfo {\n\thost, _, err := net.SplitHostPort(r.RemoteAddr)\n\tif err != nil {\n\t\thost = r.RemoteAddr\n\t}\n\treturn model.SourceInfo{\n\t\tRemoteAddr: host,\n\t\tForwardedFor: r.Header.Get(\"X-Forwarded-For\"),\n\t\tRealIP: r.Header.Get(\"X-Real-Ip\"),\n\t\tUserAgent: r.UserAgent(),\n\t\tHost: r.Host,\n\t\tOrigin: r.Header.Get(\"Origin\"),\n\t\tReferer: r.Referer(),\n\t}\n}\n\nfunc redactedHeaders(h http.Header) map[string][]string {\n\tout := make(map[string][]string, len(h))\n\tfor k, v := range h {\n\t\tif sensitiveHeaders[http.CanonicalHeaderKey(k)] {\n\t\t\tout[k] = []string{\"[REDACTED]\"}\n\t\t\tcontinue\n\t\t}\n\t\tout[k] = append([]string(nil), v...)\n\t}\n\treturn out\n}\n\n// toRawJSON returns body as-is if it is valid JSON, otherwise wraps it as a JSON string.\nfunc toRawJSON(body []byte) json.RawMessage {\n\tif strings.TrimSpace(string(body)) == \"\" {\n\t\treturn json.RawMessage(\"null\")\n\t}\n\tif json.Valid(body) {\n\t\treturn json.RawMessage(body)\n\t}\n\tb, _ := json.Marshal(string(body))\n\treturn b\n}\n\nfunc newID() string {\n\tb := make([]byte, 8)\n\t_, _ = rand.Read(b)\n\treturn hex.EncodeToString(b)\n}\nEOF\n\ncat \u003e internal/server/server_test.go \u003c\u003c'EOF'\npackage server\n\nimport (\n\t\"encoding/json\"\n\t\"io\"\n\t\"log/slog\"\n\t\"net/http\"\n\t\"net/http/httptest\"\n\t\"strings\"\n\t\"testing\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/cache\"\n\t\"github.com/your-org/decision-adapter/internal/model\"\n\t\"github.com/your-org/decision-adapter/internal/pdp\"\n)\n\nfunc newTestServer() (http.Handler, *cache.EventCache) {\n\tc := cache.New(10, time.Hour)\n\tlog := slog.New(slog.NewTextHandler(io.Discard, nil))\n\treturn New(c, pdp.NewClient(\"\"), log, 1\u003c\u003c20).Handler(), c\n}\n\nfunc TestDecisionAdapterStoresAndExposesEvents(t *testing.T) {\n\th, c := newTestServer()\n\tdefer c.Stop()\n\n\treq := httptest.NewRequest(http.MethodPost, \"/decision-adapter\", strings.NewReader(`{\"hello\":\"world\"}`))\n\treq.Header.Set(\"Authorization\", \"Bearer secret\")\n\treq.Header.Set(\"User-Agent\", \"claude-hook/1.0\")\n\trec := httptest.NewRecorder()\n\th.ServeHTTP(rec, req)\n\n\tif rec.Code != http.StatusOK {\n\t\tt.Fatalf(\"expected 200, got %d\", rec.Code)\n\t}\n\n\trec = httptest.NewRecorder()\n\th.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, \"/\", nil))\n\tif rec.Code != http.StatusOK {\n\t\tt.Fatalf(\"expected 200, got %d\", rec.Code)\n\t}\n\n\tvar resp struct {\n\t\tEvents []model.Event `json:\"events\"`\n\t}\n\tif err := json.Unmarshal(rec.Body.Bytes(), \u0026resp); err != nil {\n\t\tt.Fatalf(\"bad json: %v\", err)\n\t}\n\tif len(resp.Events) != 1 {\n\t\tt.Fatalf(\"expected 1 event, got %d\", len(resp.Events))\n\t}\n\tev := resp.Events[0]\n\tif got := ev.Headers[\"Authorization\"]; len(got) != 1 || got[0] != \"[REDACTED]\" {\n\t\tt.Errorf(\"Authorization header not redacted: %v\", got)\n\t}\n\tif ev.Source.UserAgent != \"claude-hook/1.0\" {\n\t\tt.Errorf(\"unexpected user agent: %q\", ev.Source.UserAgent)\n\t}\n\tif string(ev.Body) != `{\"hello\":\"world\"}` {\n\t\tt.Errorf(\"unexpected body: %s\", ev.Body)\n\t}\n}\n\nfunc TestBasePathOnly(t *testing.T) {\n\th, c := newTestServer()\n\tdefer c.Stop()\n\n\trec := httptest.NewRecorder()\n\th.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, \"/something-else\", nil))\n\tif rec.Code != http.StatusNotFound {\n\t\tt.Fatalf(\"expected 404, got %d\", rec.Code)\n\t}\n}\n\nfunc TestDecisionAdapterRejectsGET(t *testing.T) {\n\th, c := newTestServer()\n\tdefer c.Stop()\n\n\trec := httptest.NewRecorder()\n\th.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, \"/decision-adapter\", nil))\n\tif rec.Code != http.StatusMethodNotAllowed {\n\t\tt.Fatalf(\"expected 405, got %d\", rec.Code)\n\t}\n}\nEOF\n\ncat \u003e cmd/decision-adapter/main.go \u003c\u003c'EOF'\n// Command decision-adapter receives requests from the Claude inference\n// hook, logs them, and forwards the data to a Policy Decision Point.\npackage main\n\nimport (\n\t\"context\"\n\t\"errors\"\n\t\"log/slog\"\n\t\"net/http\"\n\t\"os\"\n\t\"os/signal\"\n\t\"syscall\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/cache\"\n\t\"github.com/your-org/decision-adapter/internal/config\"\n\t\"github.com/your-org/decision-adapter/internal/pdp\"\n\t\"github.com/your-org/decision-adapter/internal/server\"\n)\n\nfunc main() {\n\tif err := run(); err != nil {\n\t\tslog.Error(\"fatal\", \"error\", err)\n\t\tos.Exit(1)\n\t}\n}\n\nfunc run() error {\n\tcfg, err := config.Load()\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tlogger := newLogger(cfg.LogLevel)\n\tslog.SetDefault(logger)\n\n\tevents := cache.New(cfg.CacheSize, cfg.CacheTTL)\n\tdefer events.Stop()\n\n\tsrv := server.New(events, pdp.NewClient(cfg.PDPURL), logger, cfg.MaxBodyBytes)\n\n\thttpSrv := \u0026http.Server{\n\t\tAddr: \":\" + cfg.Port,\n\t\tHandler: srv.Handler(),\n\t\tReadHeaderTimeout: 5 * time.Second,\n\t\tReadTimeout: 15 * time.Second,\n\t\tWriteTimeout: 30 * time.Second,\n\t\tIdleTimeout: 60 * time.Second,\n\t}\n\n\terrCh := make(chan error, 1)\n\tgo func() {\n\t\tlogger.Info(\"listening\", \"addr\", httpSrv.Addr, \"cache_size\", cfg.CacheSize, \"cache_ttl\", cfg.CacheTTL.String())\n\t\tif err := httpSrv.ListenAndServe(); err != nil \u0026\u0026 !errors.Is(err, http.ErrServerClosed) {\n\t\t\terrCh \u003c- err\n\t\t}\n\t}()\n\n\tctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)\n\tdefer stop()\n\n\tselect {\n\tcase err := \u003c-errCh:\n\t\treturn err\n\tcase \u003c-ctx.Done():\n\t\tlogger.Info(\"shutting down\")\n\t}\n\n\tshutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)\n\tdefer cancel()\n\treturn httpSrv.Shutdown(shutdownCtx)\n}\n\nfunc newLogger(level string) *slog.Logger {\n\tvar lvl slog.Level\n\tif err := lvl.UnmarshalText([]byte(level)); err != nil {\n\t\tlvl = slog.LevelInfo\n\t}\n\treturn slog.New(slog.NewJSONHandler(os.Stdout, \u0026slog.HandlerOptions{Level: lvl}))\n}\nEOF\n\ncat \u003e Dockerfile \u003c\u003c'EOF'\n# syntax=docker/dockerfile:1\n\n# ---- build stage ----\nFROM golang:1.22-alpine AS build\nWORKDIR /src\n\n# go.sum is optional while the project has no third-party dependencies.\nCOPY go.mod ./\nRUN go mod download\n\nCOPY . .\nRUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags=\"-s -w\" \\\n -o /out/decision-adapter ./cmd/decision-adapter\n\n# ---- runtime stage ----\nFROM gcr.io/distroless/static-debian12:nonroot\nCOPY --from=build /out/decision-adapter /decision-adapter\n\nENV PORT=8080\nEXPOSE 8080\nUSER nonroot:nonroot\nENTRYPOINT [\"/decision-adapter\"]\nEOF\n\ncat \u003e .dockerignore \u003c\u003c'EOF'\n.git\n.gitignore\nbin/\n*.md\nDockerfile\n.dockerignore\nEOF\n\ncat \u003e .gitignore \u003c\u003c'EOF'\nbin/\n*.test\n*.out\n.env\n.idea/\n.vscode/\n.DS_Store\nEOF\n\ncat \u003e Makefile \u003c\u003c'EOF'\nAPP := decision-adapter\nIMAGE ?= $(APP):latest\nPORT ?= 8080\n\n.PHONY: build run test vet fmt docker-build docker-run\n\nbuild:\n\tCGO_ENABLED=0 go build -trimpath -o bin/$(APP) ./cmd/$(APP)\n\nrun:\n\tgo run ./cmd/$(APP)\n\ntest:\n\tgo test -race ./...\n\nvet:\n\tgo vet ./...\n\nfmt:\n\tgofmt -w .\n\ndocker-build:\n\tdocker build -t $(IMAGE) .\n\ndocker-run:\n\tdocker run --rm -p $(PORT):8080 -e PDP_URL=$(PDP_URL) $(IMAGE)\nEOF\n\ncat \u003e README.md \u003c\u003c'EOF'\n# decision-adapter\n\nA small Go microservice that receives requests from the Claude inference hook,\nlogs the request headers and source, caches the most recent events for\ninspection, and (eventually) forwards the data to a Policy Decision Point (PDP).\n\n## Endpoints\n\n| Method | Path | Description |\n|--------|---------------------|--------------------------------------------------------------------|\n| POST | `/decision-adapter` | Receives a hook request. Logs headers + source, caches the event, passes it to the PDP stub. Returns `200 {}`. |\n| GET | `/` | Returns the cached events as JSON, newest first. Base path only. |\n| GET | `/healthz` | Liveness/readiness probe. Returns `200 ok`. |\n\n### Event cache\n\n- Holds the **last 10 events**; when full, the oldest is evicted first.\n- **Cleared after 24 hours with no new events** (each new event resets the timer).\n- In-memory only: contents are lost on restart and are not shared across replicas.\n\nBoth limits are configurable (see below).\n\n### Sensitive headers\n\n`Authorization`, `Proxy-Authorization`, `Cookie` and `X-Api-Key` are replaced\nwith `[REDACTED]` in logs **and** in the cache. Edit `sensitiveHeaders` in\n`internal/server/server.go` to change the list.\n\n\u003e **Note:** `GET /` returns full event bodies and is unauthenticated. Restrict\n\u003e it (network policy, auth proxy, or internal-only listener) before deploying\n\u003e anywhere shared.\n\n## Configuration\n\nAll configuration is via environment variables.\n\n| Variable | Default | Description |\n|------------------|---------|-----------------------------------------------|\n| `PORT` | `8080` | HTTP listen port. |\n| `PDP_URL` | _empty_ | Base URL of the PDP (unused until implemented). |\n| `CACHE_SIZE` | `10` | Max number of events kept. |\n| `CACHE_TTL` | `24h` | Inactivity period after which the cache is cleared (Go duration, e.g. `30m`, `24h`). |\n| `MAX_BODY_BYTES` | `1048576` | Maximum accepted request body size. |\n| `LOG_LEVEL` | `info` | `debug`, `info`, `warn` or `error`. |\n\n## Getting started\n\nRequires Go 1.22+ (uses method-based routing patterns in `net/http`).\n\n```bash\nmake run # go run ./cmd/decision-adapter\nmake test # go test -race ./...\nmake build # builds bin/decision-adapter\n```\n\nTry it:\n\n```bash\ncurl -X POST localhost:8080/decision-adapter \\\n -H 'Content-Type: application/json' \\\n -H 'Authorization: Bearer secret' \\\n -d '{\"hook\":\"example\"}'\n\ncurl localhost:8080/\n```\n\n## Docker\n\n```bash\nmake docker-build\ndocker run --rm -p 8080:8080 -e PDP_URL=https://pdp.internal/v1/decide decision-adapter:latest\n```\n\nThe image is a multi-stage build producing a static binary on\n`gcr.io/distroless/static-debian12:nonroot`. Distroless has no shell or curl,\nso use `GET /healthz` from your orchestrator (e.g. a Kubernetes\n`httpGet` probe) rather than a Docker `HEALTHCHECK`.\n\n## Project layout\n\n```\ncmd/decision-adapter/ entrypoint (config, wiring, graceful shutdown)\ninternal/config/ environment-based configuration\ninternal/model/ shared domain types (Event, SourceInfo)\ninternal/cache/ bounded, TTL-cleared event cache (+ tests)\ninternal/pdp/ PDP client and request/response structs (stubs)\ninternal/server/ HTTP handlers (+ tests)\n```\n\n## PDP integration (TODO)\n\n`internal/pdp` contains empty `Request` and `Response` structs and a stub\n`Client.Evaluate`. To complete the integration:\n\n1. Define the `Request` / `Response` fields per the PDP contract.\n2. Map the Claude hook payload in `pdp.BuildRequest`.\n3. Implement the HTTP call in `Client.Evaluate` (auth, timeouts, retries).\n4. Translate the PDP decision into the response expected by the Claude hook in\n `handleDecision` (currently always `200 {}`).\n\n## Notes\n\n- The module path `github.com/your-org/decision-adapter` is a placeholder.\n Replace it in `go.mod` and in all imports (e.g.\n `grep -rl your-org . | xargs sed -i 's#github.com/your-org#github.com/\u003cyour-org\u003e#g'`).\nEOF\n\ngofmt -l . 2\u003e\u00261 | head; find . -type f | sort", "description": "Create structured Go project with Dockerfile and README" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01CSyhovv2jCRnqa816pNHb5", "tool_name": "bash_tool", "content": "{\"returncode\":0,\"stdout\":\"/bin/sh: 794: gofmt: not found\\n./.dockerignore\\n./.gitignore\\n./Dockerfile\\n./Makefile\\n./README.md\\n./cmd/decision-adapter/main.go\\n./go.mod\\n\",\"stderr\":\"/bin/sh: 10: cannot create internal/model/event.go: Directory nonexistent\\n/bin/sh: 45: cannot create internal/config/config.go: Directory nonexistent\\n/bin/sh: 109: cannot create internal/cache/cache.go: Directory nonexistent\\n/bin/sh: 188: cannot create internal/cache/cache_test.go: Directory nonexistent\\n/bin/sh: 251: cannot create internal/pdp/pdp.go: Directory nonexistent\\n/bin/sh: 294: cannot create internal/server/server.go: Directory nonexistent\\n/bin/sh: 442: cannot create internal/server/server_test.go: Directory nonexistent\\n\"}", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "text", "text": "`/bin/sh` doesn't support brace expansion, so the `internal/` directories were never created. I'll create them and write those files again." }, { "type": "tool_use", "id": "toolu_01N1wbVyK5MuYPosy2QCmGzo", "tool_name": "bash_tool", "input": { "command": "cd /home/claude/da\nmkdir -p internal/config internal/model internal/cache internal/pdp internal/server\n\ncat \u003e internal/model/event.go \u003c\u003c'EOF'\n// Package model holds the domain types shared across the service.\npackage model\n\nimport (\n\t\"encoding/json\"\n\t\"time\"\n)\n\n// SourceInfo describes where a request came from.\ntype SourceInfo struct {\n\tRemoteAddr string `json:\"remote_addr\"`\n\tForwardedFor string `json:\"forwarded_for,omitempty\"`\n\tRealIP string `json:\"real_ip,omitempty\"`\n\tUserAgent string `json:\"user_agent,omitempty\"`\n\tHost string `json:\"host,omitempty\"`\n\tOrigin string `json:\"origin,omitempty\"`\n\tReferer string `json:\"referer,omitempty\"`\n}\n\n// Event is a single request received from the Claude inference hook.\ntype Event struct {\n\tID string `json:\"id\"`\n\tReceivedAt time.Time `json:\"received_at\"`\n\tMethod string `json:\"method\"`\n\tPath string `json:\"path\"`\n\tSource SourceInfo `json:\"source\"`\n\tHeaders map[string][]string `json:\"headers\"`\n\t// Body is stored verbatim. The Claude hook payload schema is not\n\t// modelled yet, so it is kept as raw JSON (or a JSON string if the\n\t// payload was not valid JSON).\n\tBody json.RawMessage `json:\"body\"`\n}\nEOF\n\ncat \u003e internal/config/config.go \u003c\u003c'EOF'\n// Package config loads service configuration from environment variables.\npackage config\n\nimport (\n\t\"fmt\"\n\t\"os\"\n\t\"strconv\"\n\t\"time\"\n)\n\n// Config is the runtime configuration of the service.\ntype Config struct {\n\tPort string // PORT (default \"8080\")\n\tPDPURL string // PDP_URL (default empty)\n\tCacheSize int // CACHE_SIZE (default 10)\n\tCacheTTL time.Duration // CACHE_TTL (default 24h)\n\tMaxBodyBytes int64 // MAX_BODY_BYTES (default 1 MiB)\n\tLogLevel string // LOG_LEVEL: debug|info|warn|error (default \"info\")\n}\n\n// Load reads configuration from the environment, applying defaults.\nfunc Load() (Config, error) {\n\tcfg := Config{\n\t\tPort: envOr(\"PORT\", \"8080\"),\n\t\tPDPURL: os.Getenv(\"PDP_URL\"),\n\t\tCacheSize: 10,\n\t\tCacheTTL: 24 * time.Hour,\n\t\tMaxBodyBytes: 1 \u003c\u003c 20,\n\t\tLogLevel: envOr(\"LOG_LEVEL\", \"info\"),\n\t}\n\n\tif v := os.Getenv(\"CACHE_SIZE\"); v != \"\" {\n\t\tn, err := strconv.Atoi(v)\n\t\tif err != nil || n \u003c 1 {\n\t\t\treturn cfg, fmt.Errorf(\"invalid CACHE_SIZE %q: must be a positive integer\", v)\n\t\t}\n\t\tcfg.CacheSize = n\n\t}\n\tif v := os.Getenv(\"CACHE_TTL\"); v != \"\" {\n\t\td, err := time.ParseDuration(v)\n\t\tif err != nil || d \u003c= 0 {\n\t\t\treturn cfg, fmt.Errorf(\"invalid CACHE_TTL %q: must be a positive duration like 24h\", v)\n\t\t}\n\t\tcfg.CacheTTL = d\n\t}\n\tif v := os.Getenv(\"MAX_BODY_BYTES\"); v != \"\" {\n\t\tn, err := strconv.ParseInt(v, 10, 64)\n\t\tif err != nil || n \u003c 1 {\n\t\t\treturn cfg, fmt.Errorf(\"invalid MAX_BODY_BYTES %q: must be a positive integer\", v)\n\t\t}\n\t\tcfg.MaxBodyBytes = n\n\t}\n\treturn cfg, nil\n}\n\nfunc envOr(key, def string) string {\n\tif v := os.Getenv(key); v != \"\" {\n\t\treturn v\n\t}\n\treturn def\n}\nEOF\n\ncat \u003e internal/cache/cache.go \u003c\u003c'EOF'\n// Package cache provides a small in-memory store of recent events.\npackage cache\n\nimport (\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/model\"\n)\n\n// EventCache keeps the most recent N events (oldest evicted first) and\n// clears itself after ttl has elapsed with no new events.\ntype EventCache struct {\n\tmu sync.Mutex\n\tevents []model.Event // oldest -\u003e newest\n\tmax int\n\tttl time.Duration\n\ttimer *time.Timer\n}\n\n// New creates a cache holding at most max events that expires after ttl\n// of inactivity.\nfunc New(max int, ttl time.Duration) *EventCache {\n\treturn \u0026EventCache{\n\t\tevents: make([]model.Event, 0, max),\n\t\tmax: max,\n\t\tttl: ttl,\n\t}\n}\n\n// Add stores an event, evicting the oldest if full, and resets the\n// inactivity timer.\nfunc (c *EventCache) Add(e model.Event) {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tif len(c.events) \u003e= c.max {\n\t\tcopy(c.events, c.events[1:])\n\t\tc.events = c.events[:len(c.events)-1]\n\t}\n\tc.events = append(c.events, e)\n\n\tif c.timer != nil {\n\t\tc.timer.Stop()\n\t}\n\tc.timer = time.AfterFunc(c.ttl, c.clear)\n}\n\n// List returns a copy of the cached events, newest first.\nfunc (c *EventCache) List() []model.Event {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tout := make([]model.Event, len(c.events))\n\tfor i, e := range c.events {\n\t\tout[len(c.events)-1-i] = e\n\t}\n\treturn out\n}\n\nfunc (c *EventCache) clear() {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\tc.events = c.events[:0]\n\tc.timer = nil\n}\n\n// Stop cancels the pending expiry timer (for graceful shutdown).\nfunc (c *EventCache) Stop() {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\tif c.timer != nil {\n\t\tc.timer.Stop()\n\t\tc.timer = nil\n\t}\n}\nEOF\n\ncat \u003e internal/cache/cache_test.go \u003c\u003c'EOF'\npackage cache\n\nimport (\n\t\"strconv\"\n\t\"testing\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/model\"\n)\n\nfunc ev(id int) model.Event { return model.Event{ID: strconv.Itoa(id)} }\n\nfunc TestEvictsOldestWhenFull(t *testing.T) {\n\tc := New(10, time.Hour)\n\tdefer c.Stop()\n\n\tfor i := 1; i \u003c= 12; i++ {\n\t\tc.Add(ev(i))\n\t}\n\n\tgot := c.List()\n\tif len(got) != 10 {\n\t\tt.Fatalf(\"expected 10 events, got %d\", len(got))\n\t}\n\tif got[0].ID != \"12\" {\n\t\tt.Errorf(\"expected newest first (12), got %s\", got[0].ID)\n\t}\n\tif got[9].ID != \"3\" {\n\t\tt.Errorf(\"expected oldest retained to be 3, got %s\", got[9].ID)\n\t}\n}\n\nfunc TestClearsAfterInactivity(t *testing.T) {\n\tc := New(10, 50*time.Millisecond)\n\tdefer c.Stop()\n\n\tc.Add(ev(1))\n\tif len(c.List()) != 1 {\n\t\tt.Fatal(\"expected 1 event after add\")\n\t}\n\n\ttime.Sleep(200 * time.Millisecond)\n\tif n := len(c.List()); n != 0 {\n\t\tt.Fatalf(\"expected cache to be cleared, got %d events\", n)\n\t}\n}\n\nfunc TestNewEventResetsTTL(t *testing.T) {\n\tc := New(10, 150*time.Millisecond)\n\tdefer c.Stop()\n\n\tc.Add(ev(1))\n\ttime.Sleep(100 * time.Millisecond)\n\tc.Add(ev(2)) // resets the timer\n\ttime.Sleep(100 * time.Millisecond)\n\n\tif n := len(c.List()); n != 2 {\n\t\tt.Fatalf(\"expected 2 events (TTL was reset), got %d\", n)\n\t}\n}\nEOF\n\ncat \u003e internal/pdp/pdp.go \u003c\u003c'EOF'\n// Package pdp contains the client for the Policy Decision Point.\npackage pdp\n\nimport (\n\t\"context\"\n\n\t\"github.com/your-org/decision-adapter/internal/model\"\n)\n\n// Request is the payload sent to the Policy Decision Point.\n// TODO: define fields once the PDP contract is agreed.\ntype Request struct{}\n\n// Response is the decision returned by the Policy Decision Point.\n// TODO: define fields once the PDP contract is agreed.\ntype Response struct{}\n\n// Client forwards data to the PDP endpoint.\ntype Client struct {\n\t// BaseURL of the PDP, e.g. https://pdp.internal/v1/decide\n\tBaseURL string\n}\n\n// NewClient creates a PDP client.\nfunc NewClient(baseURL string) *Client {\n\treturn \u0026Client{BaseURL: baseURL}\n}\n\n// Evaluate sends the request to the PDP and returns its decision.\n// TODO: implement the HTTP call (auth, timeouts, retries) once the PDP\n// contract is defined. Currently a no-op stub.\nfunc (c *Client) Evaluate(ctx context.Context, req Request) (*Response, error) {\n\treturn \u0026Response{}, nil\n}\n\n// BuildRequest maps a raw Claude hook event into a PDP Request.\n// TODO: map fields from the Claude payload once both schemas are known.\nfunc BuildRequest(e model.Event) Request {\n\treturn Request{}\n}\nEOF\n\ncat \u003e internal/server/server.go \u003c\u003c'EOF'\n// Package server wires up the HTTP handlers of the service.\npackage server\n\nimport (\n\t\"crypto/rand\"\n\t\"encoding/hex\"\n\t\"encoding/json\"\n\t\"io\"\n\t\"log/slog\"\n\t\"net\"\n\t\"net/http\"\n\t\"strings\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/cache\"\n\t\"github.com/your-org/decision-adapter/internal/model\"\n\t\"github.com/your-org/decision-adapter/internal/pdp\"\n)\n\n// Headers whose values must never be logged or cached in clear text.\nvar sensitiveHeaders = map[string]bool{\n\t\"Authorization\": true,\n\t\"Proxy-Authorization\": true,\n\t\"Cookie\": true,\n\t\"X-Api-Key\": true,\n}\n\n// Server holds the handler dependencies.\ntype Server struct {\n\tcache *cache.EventCache\n\tpdp *pdp.Client\n\tlog *slog.Logger\n\tmaxBodyBytes int64\n}\n\n// New creates a Server.\nfunc New(c *cache.EventCache, p *pdp.Client, log *slog.Logger, maxBodyBytes int64) *Server {\n\treturn \u0026Server{cache: c, pdp: p, log: log, maxBodyBytes: maxBodyBytes}\n}\n\n// Handler returns the HTTP handler with all routes registered.\nfunc (s *Server) Handler() http.Handler {\n\tmux := http.NewServeMux()\n\tmux.HandleFunc(\"POST /decision-adapter\", s.handleDecision)\n\tmux.HandleFunc(\"GET /{$}\", s.handleEvents) // base path only\n\tmux.HandleFunc(\"GET /healthz\", s.handleHealth)\n\treturn mux\n}\n\n// POST /decision-adapter\nfunc (s *Server) handleDecision(w http.ResponseWriter, r *http.Request) {\n\tbody, err := io.ReadAll(http.MaxBytesReader(w, r.Body, s.maxBodyBytes))\n\tif err != nil {\n\t\thttp.Error(w, \"unable to read body\", http.StatusRequestEntityTooLarge)\n\t\treturn\n\t}\n\n\tevent := model.Event{\n\t\tID: newID(),\n\t\tReceivedAt: time.Now().UTC(),\n\t\tMethod: r.Method,\n\t\tPath: r.URL.Path,\n\t\tSource: sourceOf(r),\n\t\tHeaders: redactedHeaders(r.Header),\n\t\tBody: toRawJSON(body),\n\t}\n\n\ts.log.Info(\"event received\",\n\t\t\"id\", event.ID,\n\t\t\"source\", event.Source,\n\t\t\"headers\", event.Headers,\n\t)\n\n\ts.cache.Add(event)\n\n\t// Forward to the PDP (stubbed). The decision is not yet used in the\n\t// response because the hook's expected response schema is not defined.\n\tif _, err := s.pdp.Evaluate(r.Context(), pdp.BuildRequest(event)); err != nil {\n\t\ts.log.Error(\"pdp evaluation failed\", \"id\", event.ID, \"error\", err)\n\t}\n\n\tw.Header().Set(\"Content-Type\", \"application/json\")\n\tw.WriteHeader(http.StatusOK)\n\t_, _ = w.Write([]byte(\"{}\"))\n}\n\n// GET /\nfunc (s *Server) handleEvents(w http.ResponseWriter, r *http.Request) {\n\tw.Header().Set(\"Content-Type\", \"application/json\")\n\tenc := json.NewEncoder(w)\n\tenc.SetIndent(\"\", \" \")\n\t_ = enc.Encode(map[string]any{\"events\": s.cache.List()})\n}\n\n// GET /healthz\nfunc (s *Server) handleHealth(w http.ResponseWriter, r *http.Request) {\n\tw.WriteHeader(http.StatusOK)\n\t_, _ = w.Write([]byte(\"ok\"))\n}\n\nfunc sourceOf(r *http.Request) model.SourceInfo {\n\thost, _, err := net.SplitHostPort(r.RemoteAddr)\n\tif err != nil {\n\t\thost = r.RemoteAddr\n\t}\n\treturn model.SourceInfo{\n\t\tRemoteAddr: host,\n\t\tForwardedFor: r.Header.Get(\"X-Forwarded-For\"),\n\t\tRealIP: r.Header.Get(\"X-Real-Ip\"),\n\t\tUserAgent: r.UserAgent(),\n\t\tHost: r.Host,\n\t\tOrigin: r.Header.Get(\"Origin\"),\n\t\tReferer: r.Referer(),\n\t}\n}\n\nfunc redactedHeaders(h http.Header) map[string][]string {\n\tout := make(map[string][]string, len(h))\n\tfor k, v := range h {\n\t\tif sensitiveHeaders[http.CanonicalHeaderKey(k)] {\n\t\t\tout[k] = []string{\"[REDACTED]\"}\n\t\t\tcontinue\n\t\t}\n\t\tout[k] = append([]string(nil), v...)\n\t}\n\treturn out\n}\n\n// toRawJSON returns body as-is if it is valid JSON, otherwise wraps it as a JSON string.\nfunc toRawJSON(body []byte) json.RawMessage {\n\tif strings.TrimSpace(string(body)) == \"\" {\n\t\treturn json.RawMessage(\"null\")\n\t}\n\tif json.Valid(body) {\n\t\treturn json.RawMessage(body)\n\t}\n\tb, _ := json.Marshal(string(body))\n\treturn b\n}\n\nfunc newID() string {\n\tb := make([]byte, 8)\n\t_, _ = rand.Read(b)\n\treturn hex.EncodeToString(b)\n}\nEOF\n\ncat \u003e internal/server/server_test.go \u003c\u003c'EOF'\npackage server\n\nimport (\n\t\"encoding/json\"\n\t\"io\"\n\t\"log/slog\"\n\t\"net/http\"\n\t\"net/http/httptest\"\n\t\"strings\"\n\t\"testing\"\n\t\"time\"\n\n\t\"github.com/your-org/decision-adapter/internal/cache\"\n\t\"github.com/your-org/decision-adapter/internal/model\"\n\t\"github.com/your-org/decision-adapter/internal/pdp\"\n)\n\nfunc newTestServer() (http.Handler, *cache.EventCache) {\n\tc := cache.New(10, time.Hour)\n\tlog := slog.New(slog.NewTextHandler(io.Discard, nil))\n\treturn New(c, pdp.NewClient(\"\"), log, 1\u003c\u003c20).Handler(), c\n}\n\nfunc TestDecisionAdapterStoresAndExposesEvents(t *testing.T) {\n\th, c := newTestServer()\n\tdefer c.Stop()\n\n\treq := httptest.NewRequest(http.MethodPost, \"/decision-adapter\", strings.NewReader(`{\"hello\":\"world\"}`))\n\treq.Header.Set(\"Authorization\", \"Bearer secret\")\n\treq.Header.Set(\"User-Agent\", \"claude-hook/1.0\")\n\trec := httptest.NewRecorder()\n\th.ServeHTTP(rec, req)\n\n\tif rec.Code != http.StatusOK {\n\t\tt.Fatalf(\"expected 200, got %d\", rec.Code)\n\t}\n\n\trec = httptest.NewRecorder()\n\th.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, \"/\", nil))\n\tif rec.Code != http.StatusOK {\n\t\tt.Fatalf(\"expected 200, got %d\", rec.Code)\n\t}\n\n\tvar resp struct {\n\t\tEvents []model.Event `json:\"events\"`\n\t}\n\tif err := json.Unmarshal(rec.Body.Bytes(), \u0026resp); err != nil {\n\t\tt.Fatalf(\"bad json: %v\", err)\n\t}\n\tif len(resp.Events) != 1 {\n\t\tt.Fatalf(\"expected 1 event, got %d\", len(resp.Events))\n\t}\n\tev := resp.Events[0]\n\tif got := ev.Headers[\"Authorization\"]; len(got) != 1 || got[0] != \"[REDACTED]\" {\n\t\tt.Errorf(\"Authorization header not redacted: %v\", got)\n\t}\n\tif ev.Source.UserAgent != \"claude-hook/1.0\" {\n\t\tt.Errorf(\"unexpected user agent: %q\", ev.Source.UserAgent)\n\t}\n\tif string(ev.Body) != `{\"hello\":\"world\"}` {\n\t\tt.Errorf(\"unexpected body: %s\", ev.Body)\n\t}\n}\n\nfunc TestBasePathOnly(t *testing.T) {\n\th, c := newTestServer()\n\tdefer c.Stop()\n\n\trec := httptest.NewRecorder()\n\th.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, \"/something-else\", nil))\n\tif rec.Code != http.StatusNotFound {\n\t\tt.Fatalf(\"expected 404, got %d\", rec.Code)\n\t}\n}\n\nfunc TestDecisionAdapterRejectsGET(t *testing.T) {\n\th, c := newTestServer()\n\tdefer c.Stop()\n\n\trec := httptest.NewRecorder()\n\th.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, \"/decision-adapter\", nil))\n\tif rec.Code != http.StatusMethodNotAllowed {\n\t\tt.Fatalf(\"expected 405, got %d\", rec.Code)\n\t}\n}\nEOF\n\nfind . -type f | sort\nrm -rf /mnt/user-data/outputs/decision-adapter\ncp -r /home/claude/da /mnt/user-data/outputs/decision-adapter\ncd /mnt/user-data/outputs \u0026\u0026 tar czf decision-adapter.tar.gz decision-adapter \u0026\u0026 ls", "description": "Create internal packages, replace old output, bundle archive" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01N1wbVyK5MuYPosy2QCmGzo", "tool_name": "bash_tool", "content": "{\"returncode\":0,\"stdout\":\"./.dockerignore\\n./.gitignore\\n./Dockerfile\\n./Makefile\\n./README.md\\n./cmd/decision-adapter/main.go\\n./go.mod\\n./internal/cache/cache.go\\n./internal/cache/cache_test.go\\n./internal/config/config.go\\n./internal/model/event.go\\n./internal/pdp/pdp.go\\n./internal/server/server.go\\n./internal/server/server_test.go\\ndecision-adapter\\ndecision-adapter.tar.gz\\n\",\"stderr\":\"\"}", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_011sSzBrfvYJboBFLtCSHDzi", "tool_name": "present_files", "input": { "filepaths": "[\"/mnt/user-data/outputs/decision-adapter.tar.gz\", \"/mnt/user-data/outputs/decision-adapter/README.md\", \"/mnt/user-data/outputs/decision-adapter/Dockerfile\", \"/mnt/user-data/outputs/decision-adapter/cmd/decision-adapter/main.go\"]" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_011sSzBrfvYJboBFLtCSHDzi", "tool_name": "present_files", "content": "\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter.tar.gz\u003c/file_path\u003e\n\u003cname\u003edecision-adapter.tar\u003c/name\u003e\n\u003cmime_type\u003eapplication/x-tar\u003c/mime_type\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/README.md\u003c/file_path\u003e\n\u003cname\u003eREADME\u003c/name\u003e\n\u003cmime_type\u003etext/markdown\u003c/mime_type\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/Dockerfile\u003c/file_path\u003e\n\u003cname\u003eDockerfile\u003c/name\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/cmd/decision-adapter/main.go\u003c/file_path\u003e\n\u003cname\u003emain\u003c/name\u003e\n\u003c/local_resource\u003e\n\n\nThe file cards appear with your reply, and where they sit relative to its text depends on the app the user is reading in; finish the reply with text, and refer to a file by its name, never as above or below.", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "text", "text": "I've restructured it into a standard Go project and bundled everything in `decision-adapter.tar.gz`. I couldn't compile or test it, because Go and Docker aren't available in my sandbox. Run `make test` and `make docker-build` first to confirm it builds.\n\n**Project layout**\n```\ncmd/decision-adapter/main.go entrypoint: config, wiring, graceful shutdown\ninternal/config/ env-based config\ninternal/model/ Event, SourceInfo\ninternal/cache/ 10-event cache with 24h inactivity expiry, plus tests\ninternal/pdp/ empty Request/Response structs, client stub\ninternal/server/ handlers, plus tests\nDockerfile Makefile README.md .gitignore .dockerignore go.mod\n```\n\n**What changed from the first version**\n- **Config**: the cache size, TTL, body limit and log level are now environment variables (`CACHE_SIZE`, `CACHE_TTL`, `MAX_BODY_BYTES`, `LOG_LEVEL`). The defaults are the same as before: 10 events and 24h.\n- **Logging**: it now uses structured JSON logging (`log/slog`) instead of plain `log`.\n- **Health check**: I added `GET /healthz` for orchestrator probes. The image is distroless and has no shell or curl, so a Docker `HEALTHCHECK` wouldn't work. The README says to use an `httpGet` probe instead.\n- **Tests**: the cache tests cover eviction order, expiry after inactivity, and the timer resetting on new events. The handler tests cover header redaction, the base-path-only route, and 405 on a GET to `/decision-adapter`.\n- **Dockerfile**: it is a multi-stage build that produces a static binary on `distroless/static:nonroot`.\n- **Makefile**: it has `build`, `run`, `test`, `vet`, `fmt`, `docker-build` and `docker-run` targets.\n- **README**: it covers the endpoints, cache behaviour, configuration table, Docker usage, and the PDP integration steps still to do.\n\n**Before you use it**\n- The module path `github.com/your-org/decision-adapter` is a placeholder. The README has a one-line `sed` command to replace it everywhere.\n- There is no `go.sum` yet, because the project has no third-party dependencies. If you add some later, run `go mod tidy` and change the Dockerfile's `COPY go.mod ./` to also copy `go.sum`.\n- `GET /` is still unauthenticated and returns full event bodies. Put it behind your usual network controls before deploying." } ] }, { "role": "user", "content": [ { "type": "text", "text": "Why is there 2 dockerfiles inside this?" } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01Mcf33UCVwWyJueQ4r8JRXi", "tool_name": "bash_tool", "input": { "command": "cd /mnt/user-data/outputs \u0026\u0026 find . -iname '*dockerfile*' ; echo ---; tar tzf decision-adapter.tar.gz | grep -i docker", "description": "Check for duplicate Dockerfiles" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01Mcf33UCVwWyJueQ4r8JRXi", "tool_name": "bash_tool", "content": "{\"returncode\":0,\"stdout\":\"./decision-adapter/Dockerfile\\n---\\ndecision-adapter/.dockerignore\\ndecision-adapter/Dockerfile\\n\",\"stderr\":\"\"}", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "text", "text": "There's only one Dockerfile in the project. I checked both the output folder and the archive. It's `decision-adapter/Dockerfile`.\n\nYou may be seeing one of these:\n\n- **`.dockerignore`**: this is a separate file with a similar name. It isn't a second Dockerfile. It tells `docker build` which files to leave out of the build context, such as `.git`, `bin/` and the markdown files, which keeps the build faster and the image cleaner.\n- **The same files appearing twice**: I delivered the project both as an unpacked `decision-adapter/` folder and as `decision-adapter.tar.gz`. The archive contains the same files as the folder, so the Dockerfile shows up once in each.\n\nIf you're seeing two real Dockerfiles somewhere else, such as after extracting the archive on top of an earlier copy, tell me the paths and I'll look into it. The first version of the service had no Dockerfile, so an older download shouldn't be the cause." } ] }, { "role": "user", "content": [ { "type": "text", "text": "255 runtime/mgc.go:1234 +0x1c\n0.255 \n0.255 goroutine 117 gp=0xc000882a80 m=nil [runnable]:\n0.255 internal/poll.(*FD).ReadDirent(0xc0003a0000?, {0xc0006ce000?, 0x2000?, 0x2000?})\n0.255 internal/poll/fd_unixjs.go:52 +0x2c8 fp=0xc000333070 sp=0xc000333068 pc=0x4ed0e8\n0.255 os.(*File).readdir(0xc000512020, 0xffffffffffffffff?, 0x1)\n0.255 os/dir_unix.go:70 +0x1de fp=0xc0003331a8 sp=0xc000333070 pc=0x4f09de\n0.255 os.(*File).ReadDir(0xc0005ac000?, 0x1d?)\n0.255 os/dir.go:98 +0x1d fp=0xc0003331e0 sp=0xc0003331a8 pc=0x4f043d\n0.255 os.ReadDir({0xc0005ac000?, 0x1d?})\n0.255 os/dir.go:122 +0xca fp=0xc0003332a0 sp=0xc0003331e0 pc=0x4f058a\n0.255 cmd/go/internal/fsys.readDir({0xc0005ac000, 0x1d})\n0.255 cmd/go/internal/fsys/fsys.go:306 +0x2f fp=0xc000333348 sp=0xc0003332a0 pc=0x5bba0f\n0.255 cmd/go/internal/fsys.ReadDir({0xc0005ac000, 0x1d})\n0.255 cmd/go/internal/fsys/fsys.go:339 +0x2bc fp=0xc000333688 sp=0xc000333348 pc=0x5bbf5c\n0.255 cmd/go/internal/modindex.dirHash({0xc00038c018, 0x11}, {0xc0005ac000, 0x1d})\n0.255 cmd/go/internal/modindex/read.go:89 +0x1a5 fp=0xc0003337c8 sp=0xc000333688 pc=0x804f45\n0.255 cmd/go/internal/modindex.openIndexPackage.func1()\n0.255 cmd/go/internal/modindex/read.go:206 +0x85 fp=0xc0003338c0 sp=0xc0003337c8 pc=0x805a25\n0.255 cmd/go/internal/par.(*ErrCache[...]).Do.func1()\n0.255 cmd/go/internal/par/work.go:119 +0x13 fp=0xc0003338d0 sp=0xc0003338c0 pc=0x80f653\n0.255 cmd/go/internal/par.(*Cache[...]).Do(0xbad620, {{0xc00038c018, 0x11}, {0xc0005ac000, 0x1d}}, 0xc000891978)\n0.255 cmd/go/internal/par/work.go:160 +0x11b fp=0xc000333940 sp=0xc0003338d0 pc=0x81061b\n0.255 cmd/go/internal/par.(*ErrCache[...]).Do(0xc00015c100?, {{0xc00038c018, 0x11}, {0xc0005ac000, 0x1d}}, 0x0?)\n0.255 cmd/go/internal/par/work.go:118 +0x55 fp=0xc0003339a0 sp=0xc000333940 pc=0x8103f5\n0.255 cmd/go/internal/modindex.openIndexPackage({0xc00038c018?, 0xc00015c100?}, {0xc0005ac000?, 0xc00015c100?})\n0.255 cmd/go/internal/modindex/read.go:204 +0xa5 fp=0xc000333a30 sp=0xc0003339a0 pc=0x805965\n0.255 cmd/go/internal/modindex.GetPackage({0xc00038c018, 0x11}, {0xc0005ac000, 0x1d})\n0.255 cmd/go/internal/modindex/read.go:142 +0x14d fp=0xc000333a78 sp=0xc000333a30 pc=0x8053ed\n0.255 cmd/go/internal/modindex.IsStandardPackage({0xc000168060, 0xd}, {0xa9100c, 0x2}, {0xc000362dfc, 0xb})\n0.255 cmd/go/internal/modindex/read.go:672 +0x20a fp=0xc000333b48 sp=0xc000333a78 pc=0x809fca\n0.255 cmd/go/internal/modload.importFromModules({0xba7f90, 0xf8e160}, {0xc000362dfc, 0xb}, 0xc00007c140, 0x0, 0x0)\n0.255 cmd/go/internal/modload/import.go:301 +0x348 fp=0xc000333e50 sp=0xc000333b48 pc=0x82a288\n0.255 cmd/go/internal/modload.(*loader).load(0xc000250000, {0xba7f90, 0xf8e160}, 0xc000457ba0)\n0.255 cmd/go/internal/modload/load.go:1814 +0xa5 fp=0xc000333f30 sp=0xc000333e50 pc=0x845d25\n0.255 cmd/go/internal/modload.(*loader).pkg.func1.1()\n0.255 cmd/go/internal/modload/load.go:1627 +0x25 fp=0xc000333f60 sp=0xc000333f30 pc=0x844aa5\n0.256 cmd/go/internal/par.(*Queue).Add.func1()\n0.256 cmd/go/internal/par/queue.go:58 +0x5c fp=0xc000333fe0 sp=0xc000333f60 pc=0x5c0b9c\n0.256 runtime.goexit({})\n0.256 runtime/asm_amd64.s:1695 +0x1 fp=0xc000333fe8 sp=0xc000333fe0 pc=0x476281\n0.256 created by cmd/go/internal/par.(*Queue).Add in goroutine 19\n0.256 cmd/go/internal/par/queue.go:56 +0x1d3\n------\nDockerfile:12\n--------------------\n 11 | COPY . .\n 12 | \u003e\u003e\u003e RUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags=\"-s -w\" \\\n 13 | \u003e\u003e\u003e -o /out/decision-adapter ./cmd/decision-adapter\n 14 | \n--------------------\nERROR: failed to build: failed to solve: process \"/bin/sh -c CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags=\\\"-s -w\\\" -o /out/decision-adapter ./cmd/decision-adapter\" did not complete successfully: exit code: 2\n\nWhat's next:\n Debug this build failure with Gordon → docker ai \"help me fix this build failure\"" } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01LL3g5o9vBDTGrcrPcoywjJ", "tool_name": "bash_tool", "input": { "command": "cd /home/claude/da \u0026\u0026 cat \u003e Dockerfile \u003c\u003c'EOF'\n# syntax=docker/dockerfile:1\n\n# ---- build stage ----\n# Run the build natively on the host's architecture ($BUILDPLATFORM) and\n# cross-compile for the target. This avoids running the Go toolchain under\n# QEMU/Rosetta emulation, which can crash the compiler (e.g. amd64 image on\n# Apple Silicon).\nFROM --platform=$BUILDPLATFORM golang:1.22-bookworm AS build\nARG TARGETOS\nARG TARGETARCH\nWORKDIR /src\n\n# go.sum is optional while the project has no third-party dependencies.\nCOPY go.mod ./\nRUN go mod download\n\nCOPY . .\nRUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} \\\n go build -trimpath -ldflags=\"-s -w\" \\\n -o /out/decision-adapter ./cmd/decision-adapter\n\n# ---- runtime stage ----\nFROM gcr.io/distroless/static-debian12:nonroot\nCOPY --from=build /out/decision-adapter /decision-adapter\n\nENV PORT=8080\nEXPOSE 8080\nUSER nonroot:nonroot\nENTRYPOINT [\"/decision-adapter\"]\nEOF\ncp Dockerfile /mnt/user-data/outputs/decision-adapter/Dockerfile\ncd /mnt/user-data/outputs \u0026\u0026 rm decision-adapter.tar.gz \u0026\u0026 tar czf decision-adapter.tar.gz decision-adapter \u0026\u0026 ls", "description": "Update Dockerfile to build natively and cross-compile" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01LL3g5o9vBDTGrcrPcoywjJ", "tool_name": "bash_tool", "content": "{\"returncode\":0,\"stdout\":\"decision-adapter\\ndecision-adapter.tar.gz\\n\",\"stderr\":\"\"}", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01SruUE5WFrSkofACKX7KRxa", "tool_name": "present_files", "input": { "filepaths": "[\"/mnt/user-data/outputs/decision-adapter/Dockerfile\"]" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01SruUE5WFrSkofACKX7KRxa", "tool_name": "present_files", "content": "\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/Dockerfile\u003c/file_path\u003e\n\u003cname\u003eDockerfile\u003c/name\u003e\n\u003c/local_resource\u003e\n\n\nThe file cards appear with your reply, and where they sit relative to its text depends on the app the user is reading in; finish the reply with text, and refer to a file by its name, never as above or below.", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "text", "text": "This looks like an environment problem, not a bug in the Go code. The crash is inside the Go toolchain (`cmd/go`), while it's still resolving packages, before any of our code compiles. The stack runs through `runtime/mgc.go`, which is the garbage collector, so the toolchain itself fell over.\n\nThe usual causes are:\n\n1. **Emulation**: on Apple Silicon, or with an `amd64` image on an ARM machine, the Go compiler runs under QEMU or Rosetta, and it often crashes this way.\n2. **Low memory**: the Docker VM may not have enough RAM for the build.\n\nI updated the `Dockerfile` to avoid the first cause. The build stage now runs natively on your machine's architecture (`--platform=$BUILDPLATFORM`) and cross-compiles to the target with `GOOS` and `GOARCH`. No emulation is involved, and the final image is still a static distroless binary. I also switched the build image from `golang:1.22-alpine` to `golang:1.22-bookworm`, to rule out any musl-related quirks. The build stage doesn't ship, so the size doesn't matter.\n\nRebuild with:\n\n```bash\ndocker build --no-cache -t decision-adapter .\n```\n\nIf it still fails:\n\n- **Check Docker's memory**: in Docker Desktop, go to Settings → Resources and give it at least 4 GB.\n- **Send me the top of the log**: the trace you pasted is cut off before the first line, which would say `fatal error: ...` or `SIGSEGV`. That line would tell me which cause it is.\n- **Check your architecture**: run `docker version --format '{{.Server.Arch}}'` and `uname -m` and tell me if they differ.\n\nI haven't been able to build this myself, since Docker and Go aren't available in my sandbox, so this is a diagnosis from the trace and not a confirmed fix. The updated `Dockerfile` is in the `decision-adapter/` folder, and I regenerated `decision-adapter.tar.gz` to match." } ] }, { "role": "user", "content": [ { "type": "text", "text": "I need to push this image to aws ecr and run it in the aws ECS machine." } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01JyPuCfTeHgH9AhCRvMoqy4", "tool_name": "bash_tool", "input": { "command": "cd /home/claude/da \u0026\u0026 mkdir -p deploy/ecs\n\ncat \u003e deploy/push-to-ecr.sh \u003c\u003c'EOF'\n#!/usr/bin/env bash\n# Build the image for linux/amd64 and push it to Amazon ECR.\n#\n# Usage:\n# AWS_REGION=eu-west-1 ./deploy/push-to-ecr.sh [tag]\n#\n# Requires: aws cli v2 (configured), docker with buildx.\nset -euo pipefail\n\nAWS_REGION=\"${AWS_REGION:?set AWS_REGION, e.g. eu-west-1}\"\nREPO=\"${ECR_REPO:-decision-adapter}\"\nTAG=\"${1:-$(git rev-parse --short HEAD 2\u003e/dev/null || echo latest)}\"\n# Fargate defaults to X86_64. Use linux/arm64 only if the task definition\n# sets runtimePlatform.cpuArchitecture to ARM64.\nPLATFORM=\"${PLATFORM:-linux/amd64}\"\n\nACCOUNT_ID=\"$(aws sts get-caller-identity --query Account --output text)\"\nREGISTRY=\"${ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com\"\nIMAGE=\"${REGISTRY}/${REPO}:${TAG}\"\n\necho \"\u003e\u003e Ensuring ECR repository '${REPO}' exists in ${AWS_REGION}\"\naws ecr describe-repositories --repository-names \"${REPO}\" --region \"${AWS_REGION}\" \u003e/dev/null 2\u003e\u00261 \\\n || aws ecr create-repository \\\n --repository-name \"${REPO}\" \\\n --image-scanning-configuration scanOnPush=true \\\n --region \"${AWS_REGION}\" \u003e/dev/null\n\necho \"\u003e\u003e Logging in to ${REGISTRY}\"\naws ecr get-login-password --region \"${AWS_REGION}\" \\\n | docker login --username AWS --password-stdin \"${REGISTRY}\"\n\necho \"\u003e\u003e Building and pushing ${IMAGE} (${PLATFORM})\"\ndocker buildx build --platform \"${PLATFORM}\" -t \"${IMAGE}\" --push .\n\necho \"\u003e\u003e Done: ${IMAGE}\"\nEOF\nchmod +x deploy/push-to-ecr.sh\n\ncat \u003e deploy/ecs/task-definition.json \u003c\u003c'EOF'\n{\n \"family\": \"decision-adapter\",\n \"networkMode\": \"awsvpc\",\n \"requiresCompatibilities\": [\"FARGATE\"],\n \"cpu\": \"256\",\n \"memory\": \"512\",\n \"executionRoleArn\": \"arn:aws:iam::\u003cACCOUNT_ID\u003e:role/ecsTaskExecutionRole\",\n \"runtimePlatform\": {\n \"operatingSystemFamily\": \"LINUX\",\n \"cpuArchitecture\": \"X86_64\"\n },\n \"containerDefinitions\": [\n {\n \"name\": \"decision-adapter\",\n \"image\": \"\u003cACCOUNT_ID\u003e.dkr.ecr.\u003cREGION\u003e.amazonaws.com/decision-adapter:\u003cTAG\u003e\",\n \"essential\": true,\n \"portMappings\": [\n { \"containerPort\": 8080, \"protocol\": \"tcp\" }\n ],\n \"environment\": [\n { \"name\": \"PORT\", \"value\": \"8080\" },\n { \"name\": \"PDP_URL\", \"value\": \"https://pdp.example.internal/v1/decide\" },\n { \"name\": \"LOG_LEVEL\", \"value\": \"info\" }\n ],\n \"logConfiguration\": {\n \"logDriver\": \"awslogs\",\n \"options\": {\n \"awslogs-group\": \"/ecs/decision-adapter\",\n \"awslogs-region\": \"\u003cREGION\u003e\",\n \"awslogs-stream-prefix\": \"ecs\"\n }\n }\n }\n ]\n}\nEOF\n\npython3 - \u003c\u003c'EOF'\nimport re\np='README.md'\ns=open(p).read()\nadd='''## Deploying to AWS (ECR + ECS Fargate)\n\n```bash\nAWS_REGION=eu-west-1 ./deploy/push-to-ecr.sh v1 # build (linux/amd64) + push to ECR\n```\n\nThen register `deploy/ecs/task-definition.json` (fill in the `\u003cPLACEHOLDERS\u003e`)\nand create an ECS service from it. Notes:\n\n- Health check: point the load balancer target group at `GET /healthz` on port 8080\n (the distroless image has no shell, so a container-level `curl` check is not possible).\n- The cache is per-task and in-memory. With more than one task, `GET /` shows the\n events of whichever task the load balancer picks. Use `desiredCount: 1` if you\n want a single consistent view.\n- Restrict access to `GET /` (security group, internal ALB, or auth) as it returns\n full event bodies.\n\n'''\ns=s.replace('## Project layout', add+'## Project layout')\nopen(p,'w').write(s)\nEOF\n\nrm -rf /mnt/user-data/outputs/decision-adapter\ncp -r /home/claude/da /mnt/user-data/outputs/decision-adapter\ncd /mnt/user-data/outputs \u0026\u0026 rm -f decision-adapter.tar.gz \u0026\u0026 tar czf decision-adapter.tar.gz decision-adapter \u0026\u0026 ls decision-adapter decision-adapter/deploy", "description": "Add ECR push script, ECS task definition, README section" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01JyPuCfTeHgH9AhCRvMoqy4", "tool_name": "bash_tool", "content": "{\"returncode\":0,\"stdout\":\"decision-adapter:\\nDockerfile\\nMakefile\\nREADME.md\\ncmd\\ndeploy\\ngo.mod\\ninternal\\n\\ndecision-adapter/deploy:\\necs\\npush-to-ecr.sh\\n\",\"stderr\":\"\"}", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "toolu_01LwVqvuJD5rZxSSrqpuhagx", "tool_name": "present_files", "input": { "filepaths": "[\"/mnt/user-data/outputs/decision-adapter/deploy/push-to-ecr.sh\", \"/mnt/user-data/outputs/decision-adapter/deploy/ecs/task-definition.json\", \"/mnt/user-data/outputs/decision-adapter.tar.gz\"]" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "toolu_01LwVqvuJD5rZxSSrqpuhagx", "tool_name": "present_files", "content": "\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/deploy/push-to-ecr.sh\u003c/file_path\u003e\n\u003cname\u003epush-to-ecr\u003c/name\u003e\n\u003cmime_type\u003etext/x-sh\u003c/mime_type\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter/deploy/ecs/task-definition.json\u003c/file_path\u003e\n\u003cname\u003etask-definition\u003c/name\u003e\n\u003cmime_type\u003eapplication/json\u003c/mime_type\u003e\n\u003c/local_resource\u003e\n\u003clocal_resource\u003e\n\u003cfile_path\u003e/mnt/user-data/outputs/decision-adapter.tar.gz\u003c/file_path\u003e\n\u003cname\u003edecision-adapter.tar\u003c/name\u003e\n\u003cmime_type\u003eapplication/x-tar\u003c/mime_type\u003e\n\u003c/local_resource\u003e\n\n\nThe file cards appear with your reply, and where they sit relative to its text depends on the app the user is reading in; finish the reply with text, and refer to a file by its name, never as above or below.", "is_error": false } ] }, { "role": "assistant", "content": [ { "type": "text", "text": "I added a push script and a Fargate task definition to the project (`deploy/push-to-ecr.sh` and `deploy/ecs/task-definition.json`). I can't reach your AWS account from here, so none of this has been run. It assumes ECS on Fargate; if you're using EC2 instances, tell me and I'll adjust.\n\n## 1. Push the image to ECR\n\n```bash\nAWS_REGION=eu-west-1 ./deploy/push-to-ecr.sh v1\n```\n\nThe script creates the `decision-adapter` repo if it doesn't exist, logs Docker in to ECR, and builds and pushes the image. It builds for `linux/amd64` on purpose. If you build on Apple Silicon without specifying a platform, you get an arm64 image, and Fargate's default X86_64 tasks will then fail with `exec format error`. To run on ARM instead, set `PLATFORM=linux/arm64` and change `cpuArchitecture` to `ARM64` in the task definition.\n\n## 2. One-time ECS setup\n\n```bash\nexport AWS_REGION=eu-west-1\n\naws logs create-log-group --log-group-name /ecs/decision-adapter\naws ecs create-cluster --cluster-name decision-adapter\n\n# After filling in the \u003cPLACEHOLDERS\u003e in task-definition.json:\naws ecs register-task-definition --cli-input-json file://deploy/ecs/task-definition.json\n```\n\nThe task definition expects an `ecsTaskExecutionRole`, which is the standard role with `AmazonECSTaskExecutionRolePolicy`. It lets ECS pull from ECR and write logs. If your account doesn't have the role, create it first.\n\n## 3. Create the service\n\nIf you only need to test it, you can skip the load balancer and create a service with a public IP:\n\n```bash\naws ecs create-service \\\n --cluster decision-adapter \\\n --service-name decision-adapter \\\n --task-definition decision-adapter \\\n --desired-count 1 \\\n --launch-type FARGATE \\\n --network-configuration \"awsvpcConfiguration={subnets=[subnet-xxx],securityGroups=[sg-xxx],assignPublicIp=ENABLED}\"\n```\n\nFor anything real, put it behind an Application Load Balancer.\n\n- **Target group**: use port 8080 and health check path `/healthz`.\n- **Security group**: allow inbound on port 8080 only from the ALB.\n- **HTTPS**: the Claude hook needs an endpoint it can reach, so terminate TLS on the ALB.\n\n## Things to watch\n\n- **Health checks**: the image is distroless, with no shell or curl, so use the ALB health check on `/healthz` and not a container-level check.\n- **Multiple tasks**: the cache is in memory and per task. With a desired count above 1, `GET /` shows whichever task the load balancer picks. Keep it at 1 if you want one consistent view of the last 10 events.\n- **Exposure**: `GET /` is unauthenticated and returns full event bodies. Restrict it with an internal ALB, a security group, or an auth rule on the ALB listener, so only the hook's traffic can reach `/decision-adapter`.\n- **PDP_URL**: set it in the task definition's `environment`. If it's sensitive, move it to Secrets Manager or SSM and use the `secrets` field.\n- **Logs**: they go to the CloudWatch log group `/ecs/decision-adapter`, which is where you'll see the headers and source for each request.\n\nI also added this as a short section in the README and regenerated `decision-adapter.tar.gz`. If you share your VPC setup, I can write the ALB and service as Terraform or CloudFormation." } ] }, { "role": "user", "content": [ { "type": "text", "text": "I did not ask you for all this. \nI docker build command you had shared will build the image native to mac only. Will this image work in the linux distro ?" } ] }, { "role": "assistant", "content": [ { "type": "text", "text": "Sorry, that was more than you asked for.\n\nThe image isn't Mac-native. Docker on a Mac runs a Linux VM, so the image is always a Linux image, and the Dockerfile compiles the Go binary with `GOOS=linux`. It will run on a Linux host.\n\nThe one thing that can go wrong is the CPU architecture. A plain `docker build` produces an image for your Mac's architecture:\n\n- **Apple Silicon (M1/M2/M3)**: you get a `linux/arm64` image. It runs on ARM Linux hosts, such as Graviton instances. It won't run on standard x86_64 Linux servers and fails with `exec format error`.\n- **Intel Mac**: you get a `linux/amd64` image, which works on standard x86_64 Linux.\n\nIf your target is x86_64 Linux, build for it explicitly:\n\n```bash\ndocker buildx build --platform linux/amd64 -t decision-adapter .\n```\n\nThe Dockerfile already supports this, so no changes are needed. Check what you built with `docker image inspect decision-adapter --format '{{.Architecture}}'`, which prints `amd64` or `arm64`." } ] }, { "role": "user", "content": [ { "type": "text", "text": "how do I build this localy and run the using golang" } ] } ] } }, { "id": "ec17ffda9a4a4193", "received_at": "2026-10-24T18:14:27.185623812Z", "method": "POST", "path": "/decision-adapter", "source": { "remote_addr": "10.250.0.27", "forwarded_for": "160.79.106.131", "user_agent": "anthropic-dlp/1", "host": "de-528bd20d2f1348d99e83da208cf9b045.ecs.us-east-1.on.aws" }, "headers": { "Accept": [ "*/*" ], "Accept-Encoding": [ "identity" ], "Content-Length": [ "383" ], "Content-Type": [ "application/json" ], "User-Agent": [ "anthropic-dlp/1" ], "Webhook-Id": [ "dlp_config_test_33063bc277e245b19119c1ffc07a82de" ], "Webhook-Signature": [ "v1,9geQHtZuXW6eq5Hyp50QpnU8PCWca/fITfFJ/R7hnT0=" ], "Webhook-Timestamp": [ "1792865667" ], "X-Amzn-Trace-Id": [ "Root=1-6adcf583-60ef23ff602b9d2f63ed042d" ], "X-Forwarded-For": [ "160.79.106.131" ], "X-Forwarded-Port": [ "443" ], "X-Forwarded-Proto": [ "https" ] }, "body": { "type": "prompt", "tenant_id": "fe104aca-3a38-4975-8d93-9976244f5cc6", "session_id": null, "request_id": "dlp_config_test_33063bc277e245b19119c1ffc07a82de", "model": null, "actor": { "type": "user", "id": null, "email_address": null }, "source": { "application": "config-test" }, "metadata": {}, "messages": [ { "role": "user", "content": [ { "type": "text", "text": "Anthropic Inference hooks configuration test." } ] } ] } }, { "id": "bc9f7ac5422b4ee2", "received_at": "2026-10-24T18:14:18.33745898Z", "method": "POST", "path": "/decision-adapter", "source": { "remote_addr": "10.250.0.53", "forwarded_for": "160.79.106.141", "user_agent": "anthropic-dlp/1", "host": "de-528bd20d2f1348d99e83da208cf9b045.ecs.us-east-1.on.aws" }, "headers": { "Accept": [ "*/*" ], "Accept-Encoding": [ "identity" ], "Content-Length": [ "383" ], "Content-Type": [ "application/json" ], "User-Agent": [ "anthropic-dlp/1" ], "Webhook-Id": [ "dlp_config_test_d00866c1b9384321960e214c102ef3d8" ], "Webhook-Signature": [ "v1,y1dCmSee1lKhTdCOXaiLulJj5caH0p8N1DWNlCWe3Ec=" ], "Webhook-Timestamp": [ "1792865658" ], "X-Amzn-Trace-Id": [ "Root=1-6adcf57a-184bf0083810e69c158847c1" ], "X-Forwarded-For": [ "160.79.106.141" ], "X-Forwarded-Port": [ "443" ], "X-Forwarded-Proto": [ "https" ] }, "body": { "type": "prompt", "tenant_id": "fe104aca-3a38-4975-8d93-9976244f5cc6", "session_id": null, "request_id": "dlp_config_test_d00866c1b9384321960e214c102ef3d8", "model": null, "actor": { "type": "user", "id": null, "email_address": null }, "source": { "application": "config-test" }, "metadata": {}, "messages": [ { "role": "user", "content": [ { "type": "text", "text": "Anthropic Inference hooks configuration test." } ] } ] } }, { "id": "f28b80814a949ba9", "received_at": "2026-10-24T18:13:15.075454036Z", "method": "POST", "path": "/decision-adapter", "source": { "remote_addr": "10.250.0.27", "forwarded_for": "223.181.117.199", "user_agent": "PostmanRuntime/2.12.2", "host": "de-528bd20d2f1348d99e83da208cf9b045.ecs.us-east-1.on.aws" }, "headers": { "Accept": [ "*/*" ], "Accept-Encoding": [ "gzip, deflate, br" ], "Content-Length": [ "795" ], "Content-Type": [ "application/json" ], "Postman-Token": [ "3dd62fec-a5a8-4420-990d-ce22c497d51d" ], "User-Agent": [ "PostmanRuntime/2.12.2" ], "X-Amzn-Trace-Id": [ "Root=1-6adcf53b-2aac5c832ad66d013457305d" ], "X-Forwarded-For": [ "223.181.117.199" ], "X-Forwarded-Port": [ "443" ], "X-Forwarded-Proto": [ "https" ] }, "body": { "type": "prompt", "request_id": "req_abc123", "tenant_id": "11111111-1111-1111-1111-111111111111", "actor": { "type": "user", "id": "user_01AbCdEfGhIjKlMnOpQrStUv", "email_address": "alice@example.com" }, "source": { "application": "claude-ai" }, "session_id": "22222222-2222-2222-2222-222222222222", "model": "claude-sonnet-4-5", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "Summarize the attached report." }, { "type": "attachment", "file_name": "q2-report.pdf", "media_type": "application/pdf", "size_bytes": 48213, "text": "Q2 revenue grew 14% quarter over quarter..." } ] } ], "metadata": {} } } ] }