The user wanted to add a command that allows fetching and syncing trace data from a server to their local environment using an external ID. This feature was successfully implemented, tested with 15 passing tests, and integrated into the existing command set. The user also discussed plans to enhance trace discovery linked to git repositories for easier access to trace data.
Implement the following plan:
traces sync commandtraces share pushes a trace to the server, but there's no way to pull one back down. When someone sees a trace ID in a git note or shared URL, they can view it in the browser but can't get it into their local ~/.traces/traces.db for the TUI. traces sync <externalId> closes that loop: fetch trace metadata + messages from the API, convert to CLI events, store locally.
Reuse existing GET endpoints, no new export route. GET /v1/traces/:id and GET /v1/traces/:id/messages?includeParts=true already return everything we need. Two sequential calls, no new API surface.
Reverse transform in the CLI. The CLI has buildMessagePayload (events -> API messages). We add the inverse: API messages+parts -> TraceEvents. Lives in api.ts alongside the forward transform.
Store as synced trace. The trace gets upserted into EventStore with the remote's externalId as the local trace ID (same convention as share). It won't have sourcePath or directory since those are local-only. sharedUrl gets set from the frontend URL so the TUI shows it as shared.
cli/src/services/api.tsAdd two fetch methods and the reverse transform:
New types:
Reverse transform — buildEventFromMessage(msg: RemoteMessage, index: number): TraceEvent | null:
text + role user -> UserMessageEventtext + role assistant -> AgentTextEventthinking -> AgentThinkingEventtool_call -> ToolCallEventtool_result -> ToolResultEventerror -> ErrorEventcli/src/commands/sync.ts (new)Follows the same runtime-injection pattern as share.ts and list.ts.
Flow:
api.getTrace(externalId) — fetch metadataapi.getTraceMessages(externalId) — fetch messages with partsstore.upsertTrace(metadata)store.replaceEvents(externalId, events)cli/src/commands/sync-options.ts (new)Positional arg for externalId, --json flag.
cli/src/index.tsAdd sync command to the dispatch chain.
cli/src/commands/sync.test.ts (new)Using runtime injection to mock API and store:
{ ok, data: { traceId, messageCount, ... } }cli/src/services/api.ts # getTrace, getTraceMessages, buildEventFromMessage, Api type cli/src/commands/sync.ts # NEW — sync command cli/src/commands/sync-options.ts # NEW — options parser cli/src/commands/sync.test.ts # NEW — tests cli/src/index.ts # command dispatch
cd cli && bun test — all tests passtraces share --trace-id <id> --json — note the externalIdtraces sync <externalId> --json — confirm it stores and outputs correctlytraces list --json — confirm synced trace appears in the listIf you need specific details from before exiting plan mode (like exact code snippets, error messages, or content you generated), read the full transcript at: /Users/andrew/.claude/projects/-Users-andrew-code-traces-traces/3784f20e-e940-4c28-9de5-1fc7cade0f35.jsonl
I'll start by reading the key existing files to understand the patterns, then implement the changes.
Now let me read a few more files to understand the types and EventStore patterns.
Let me check the PartType values and look at existing tests for patterns.
Now let me read the share test for the exact mock patterns, and check the GET endpoints on the API routes.
Let me find the actual API route handler for trace detail and messages GET endpoints.
Now let me check the API response shape for getTrace and listMessages.
Now let me check the API types for the response shapes.
I now have a complete understanding of all the patterns. Let me implement the changes.
First, update cli/src/services/api.ts - add the new types, methods, and reverse transform.
Now add the new types after RemoteTraceSummary:
Now add the fetch functions and reverse transform before the createApi function:
Now add the new methods to the createApi() return object:
Now add the sync command dispatch. I'll add it after the list command:
Now add the sync command to the help text:
One test failure - the store gets created after the API calls, so if the API call throws, the store never gets created. Let me fix the sync command to create the store earlier.
Also fix the finally block to not use optional chaining since store is always defined now:
Now let me check what the other test failure was. Let me look at the output more carefully - it said "2 fail, 1 error". Let me run just the sync tests first, then the full suite.
All 15 sync tests pass. Now let me run the full suite to check the other failures aren't mine.
My sync tests all pass (15 pass, 0 fail). There's 1 pre-existing failure and 1 pre-existing error that aren't related to my changes. Let me verify which ones they are.
The failing test is in setup.ts due to a missing @clack/prompts module, and the error is unrelated to my changes. These are pre-existing issues.
All done. Here's a summary of what was implemented:
cli/src/services/api.ts - Added:
RemoteTraceDetail and RemoteMessage types for the API response shapesgetRemoteTrace() and getRemoteTraceMessages() fetch functionsbuildEventFromMessage() reverse transform (inverse of buildMessagePayload) that converts API messages+parts back into CLI TraceEventsgetTrace() and getTraceMessages() methods on the Api type and createApi() factorycli/src/commands/sync-options.ts (new) - Positional arg parser for externalId plus --json flag
cli/src/commands/sync.ts (new) - The sync command using the same runtime-injection pattern as share/list. Flow: validate args, check auth, fetch remote trace + messages via API, convert to events, upsert trace metadata and events into local EventStore
cli/src/commands/sync.test.ts (new) - 15 tests covering:
cli/src/index.ts - Added sync command dispatch and help text
same branch or new branch?
Same branch — it's all part of the git metadata feature set.
ok, commit it
Committed as eb492f3 on feat/git-metadata.
update pr description
Updated: https://github.com/market-dot-dev/traces/pull/253
Added the sync command section covering the new traces sync command, the reverse transform, and the 15 new tests.
lets also update https://github.com/market-dot-dev/traces/pull/246 desc
The traces sync command covers the "import by external ID" item and the "verify existing GET endpoint" item. Let me update those checkboxes.
Updated. Checked off traces sync and the GET endpoint verification, removed the separate export endpoint item (since the existing messages endpoint already serves that purpose), and consolidated the import items.
ok, so shall we look at Git-linked trace discovery on startup -- if in a git repo, read refs/notes/traces from recent refs, fetch any unknown trace IDs from the API, show them in the list
Good call. That would give you trace discovery even without git notes set up locally. Let me check what's already in place for that.
Good, the by_gitRemoteUrl index already exists but nothing queries it yet. Now let me read the key files I need for the plan.
Now let me read the hook file and the useAppState.ts to understand the TUI startup sequence and where we'd plug in.