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Kyle Carberry
c0f854c289
Surfaces a chat's pinned workspace-context resources on the single-chat GET and refresh responses, so clients can show *what* context the prompt was built from, not just whether it drifted. ## What's included - **codersdk**: `ChatContextResource` (plus `ChatContextResourceKind` and `ChatContextResourceStatus`) and `ChatContextMCPTool`, and a new `Chat.Context.Resources` field (metadata only, no bodies). It is populated only on the single-chat GET/refresh response; list and watch payloads stay nil to remain lightweight. - **coderd/x/chatd**: `Server.ContextResources`, which builds the metadata-only list from the chat's pinned `chat_context_resources` rows. Non-OK resources (invalid / unreadable / oversize / excluded) are reported with their status and error so the UI can explain why a resource was dropped from the prompt instead of silently omitting it. The shared protojson body decoders are extracted so the prompt and detail paths reuse them. - **coderd**: `getChat` and `refreshChatContext` enrich the response with the resource list. Failures are non-fatal (the chat stays usable without the detail). ## Scope / what's deferred This is an incremental split from #26466. This PR reports only the **resource inventory**. The pinned-context drift *diff* (the per-source `changes` set and the "View changes" dialog) is intentionally deferred to a later split; the existing `dirty` bit already signals that context changed. MCP resources are reported for display only; they are not injected into the prompt (a future RFC item). <details> <summary>Design notes</summary> - The resource list is the chat's full pinned inventory (instruction files, skills, and MCP configs/servers), preserving the query's `source ASC` order. OK-but-empty instruction files, OK skills with no name, and untracked kinds (reserved plugin/hook/subagent/command) are skipped. - MCP tool names are reported with the agent's `"<server>__"` prefix stripped so they read as the server exposes them. - The detail is computed on read and attached only on the single-chat GET and refresh responses; list and watch payloads omit it to stay lightweight. - `refreshChatContext` enriches its own response (mirroring `getChat`) so the client reflects a refresh immediately, without a full reload. </details> <details> <summary>Testing</summary> - `go test ./coderd/x/chatd/ -run 'TestPinnedContextResources|TestContextResources|TestChatContextDirtyFromAgentPush'` (unit + integration on embedded Postgres) passes. The integration test exercises the GET and refresh enrichment end-to-end. - `go build`, `go vet`, `golangci-lint`, and `gofmt` are clean. - `make gen` regenerated `apidoc`, `swagger.json`, `docs/reference/api/*`, and `typesGenerated.ts`. </details> --- *This PR was created by Coder Agents on behalf of @kylecarbs.*