Implement Cross-Agent Trace Sharing FeaturePublic

Great direction. You already have most of the backend plumbing; the missing piece is a headless “publish current trace” entrypoint that skills can call.

• Right now publishing exists in the TUI flow (cli/src/core/trace-controller.ts:185, cli/src/tui/app.tsx:1596) and API sync is reusable (cli/src/services/api.ts:336), so this is mostly an interface/orchestration problem.
• Best foundation: add a non-interactive CLI command like traces share --current --json that returns URL + trace id, then call that from skills in each agent.
• To make “across every agent” real, define one cross-agent skill contract: command name (share to traces), required outputs (URL, visibility, status), and fallback behavior (if no active trace found).
• Resolver strategy should be layered: session id if available -> sourcePath if available -> latest trace in cwd updated in last N mins heuristic.
• Add a safe default visibility (unlisted if supported) and optional redaction pass before publish; publishing tool outputs/thinking can leak secrets.
• Decide early whether “mid trace” means snapshot-on-demand or live-updating link; that changes architecture a lot.

Practical rollout I’d recommend:

1. MVP (fastest): snapshot share via skills

• Add traces share --current --agent auto --cwd "$PWD" --json.
• Add per-agent skill wrappers that all invoke the same command and return the URL inline.
• This gives “mid trace, share to traces” quickly.

2. Phase 2: live follow mode

• Add traces share --current --follow (or a background tracesd) so shared traces keep updating after initial publish.
• Reuse adapter subscriptions from TraceController but run outside TUI lifecycle.

3. Phase 3: universal fallback trigger

• For agents without robust skill hooks, detect user message patterns like share to traces in the ingestion path and auto-publish + desktop notification/clipboard.
• Keeps parity across adapters (claude-code, cursor, opencode, codex, gemini-cli) even when command systems differ.

One key product choice before implementation: do you want the shared link to be live-updating by default (recommended) or just a point-in-time snapshot?
If live, I’d plan for the background follower/daemon immediately; if snapshot, we can ship much faster with just the headless command + skills.

Done — I created a new project plan at:

• docs/projects/share-to-traces-skills.md

It follows the existing project-doc style and best practices:

• Starts at lowest level (API/types) before CLI and agent skill wiring
• Uses atomic, checkbox-based phases
• Splits rollout into committable/reversible releases
• Avoids bundling API/CLI/frontend changes in one phase
• Includes verification commands, risks, and open questions

If you want, I can next draft a Phase 3 implementation checklist PR-ready breakdown (exact file-by-file task order for cli/src/commands/share.ts and cli/src/index.ts).

Added it — I expanded the project doc with a PR-ready Phase 3 breakdown, including exact file-by-file task order and acceptance criteria.

Updated:

• docs/projects/share-to-traces-skills.md

New section:

• Part 3.1: PR-Ready Breakdown (file-by-file order)
  • PR 1: entrypoint wiring (cli/src/index.ts, stub cli/src/commands/share.ts)
  • PR 2: command/output contract + error codes
  • PR 3: resolver + actual controller.share(...)
  • PR 4: tests + --follow guard behavior
  • PR 5 (optional): resolver hardening extraction

If you want, I can now start implementing PR 1 directly (index.ts wiring + commands/share.ts stub).

Implemented PR1 on a separate branch.

• Branch created: feat/share-command-pr1
• Wired new share command routing in cli/src/index.ts:25 and cli/src/index.ts:54
• Added CLI help entries for share and its flags in cli/src/index.ts:75
• Added basic flag parser for --trace-id, --source-path, --cwd, --agent, --json, --follow in cli/src/index.ts:170
• Added stub command handler at cli/src/commands/share.ts:1 returning exit code 1 with a clear “not implemented yet” message

I also left your project doc file present in this branch:

• docs/projects/share-to-traces-skills.md

Verification note:

• I tried running tests with bun test in cli/, but bun is not available in this environment (command not found: bun).

Next step I can do now:

1. Implement PR2 (stable JSON output contract + structured error codes in cli/src/commands/share.ts)

You’re right on both points.

• I renamed the branch to feat/share-command (no PR suffix).
• PR2 in my earlier breakdown meant: define the share command contract (structured success/error JSON + stable error codes), before implementing resolver/upload logic.
• I paused that and added tests first for this feature.

What I added:

• cli/src/commands/share.test.ts with initial behavior tests:
  • returns non-zero while unimplemented
  • logs a clear placeholder error
  • accepts the planned options shape
• Existing feature stub remains in cli/src/commands/share.ts
• Existing routing/help wiring remains in cli/src/index.ts

Current git state:

• Branch: feat/share-command
• Changed/new files:
  • cli/src/index.ts
  • cli/src/commands/share.ts
  • cli/src/commands/share.test.ts
  • docs/projects/share-to-traces-skills.md

Verification:

• I attempted to run bun test cli/src/commands/share.test.ts, but this environment doesn’t have Bun installed (bun: command not found).

Next, I can move to the next test-first step: add command-parser/routing tests around share flags in cli/src/index.ts (so implementation can follow with safety).

Good call — I’ve rewritten the tests to target intended functional behavior (not current placeholder behavior), so they should fail until shareCommand is actually implemented.

Updated:

• cli/src/commands/share.test.ts

What changed:

• Removed self-referential assertions like “returns non-zero until implemented.”
• Added contract-style behavior tests:
  • share_requires_selector_and_returns_invalid_arguments_json
    • expects exit code 2
    • expects JSON error payload with INVALID_ARGUMENTS
  • share_by_trace_id_returns_success_json_with_share_url
    • expects exit code 0 for valid traceId
  • share_by_trace_id_prints_machine_readable_success_payload
    • expects JSON success envelope with traceId, sharedUrl, and agentId

So yes — these tests now define real expected behavior and will fail until the command is built to match.

I still can’t run them in this environment because bun isn’t installed here (command not found), but you should see failing tests locally now until implementation lands.

Absolutely — agreed. I expanded the tests so they validate the actual feature contract, not placeholder state.

What I changed:

• Added dedicated flag-parser module so parser behavior is testable in isolation:
  • cli/src/commands/share-options.ts
  • wired into cli/src/index.ts
• Added parser tests covering all new share flags:
  • cli/src/commands/share-options.test.ts
  • covers --trace-id, --source-path, --cwd, --agent, --json, --follow, and unknown-flag handling
• Reworked/expanded command behavior tests to be functional and implementation-driving:
  • cli/src/commands/share.test.ts
  • now tests:
    • selector required error
    • multiple selectors rejected
    • success expectations for --trace-id
    • success expectations for --source-path
    • success expectations for --cwd (+ agent)
    • agent validation failure
    • non-JSON human-readable success output
    • --follow explicit not-implemented contract for now
• Branch name fixed as requested:
  • current branch: feat/share-command

You’re right that these should fail until implemented — these tests now define the intended behavior and should force the real command implementation to match.

I couldn’t execute tests in this environment because bun is unavailable here (command not found), but the test coverage is now substantially deeper for the new functional surface.

Next logical step:

1. Implement shareCommand in cli/src/commands/share.ts to satisfy this test contract.

Yes — it’s possible, and for reliable behavior it’s strongly recommended.

• Not strictly “required” in a technical sense (you could rely on prompt text alone), but without installed skills/instructions each agent may ignore or inconsistently handle “share to traces.”
• Agents “know” to use it through one of these hooks:
  1. skill metadata + trigger phrases,
  2. agent/system instructions (AGENTS.md/equivalent),
  3. explicit slash command mapping (/share-to-traces).

Recommended pattern (most reliable):

• One canonical command: traces share --cwd "$PWD" --agent auto --json
• Install thin per-agent skill wrappers that just call that command.
• Add trigger phrases in each skill: “share to traces”, “publish this trace”.
• Add fallback instruction: if command fails, return structured remediation (run traces login, etc).

So: yes, install skills in each agent’s skill folder as an option; for cross-agent consistency, treat it as required for v1 behavior quality.

If you want, I can now add a concrete “Skill Distribution Plan” section to docs/projects/share-to-traces-skills.md with:

• per-agent install locations,
• trigger contract,
• wrapper template,
• versioning/update strategy.

Done — I added this as a formal requirement in both project and adapter docs.

Updated docs:

• docs/projects/share-to-traces-skills.md

  • Added Skill Distribution Plan (required for adapter parity)
  • Added required wrapper behavior:
    • canonical command traces share --cwd "$PWD" --agent auto --json
    • explicit selector preference (--trace-id, --source-path)
    • standard triggers + standard error mapping
  • Added Adapter Completion Gate so adapter work is not “done” until skill wrapper is installed/verified

• docs/adding-agents.md

  • Updated Overview from 2 places -> 3 places (shared types, CLI adapter, skill wrapper)
  • Added Step 5: Install Agent Share Skill Wrapper (Required)
  • Added explicit completion rule and validation checks
  • Added testing item for wrapper command execution and URL return

This makes “share-to-traces skill installation” part of the default new adapter process, not optional cleanup afterward.

Perfect — here’s a practical E2E plan for the share-to-traces feature.

Scope

• Validate the full user path: agent trace exists -> traces share ... runs -> trace is published -> URL is returned -> URL is readable.
• Cover all selectors and flags: --trace-id, --source-path, --cwd, --agent, --json, --follow.
• Cover adapter parity and skill wrapper behavior across supported agents.

Test Environments

• Local hermetic E2E: fixture traces + local API stub + temporary config dir.
• Staging smoke E2E: real API and auth credentials, minimal happy-path checks.
• CI gating: hermetic suite required, staging smoke optional/manual at first.

Core E2E Scenarios

• Authenticated happy path with --trace-id returns exit 0, valid JSON, and reachable share URL.
• Authenticated happy path with --source-path resolves correct trace and publishes once.
• Authenticated happy path with --cwd --agent auto picks most recent matching trace and publishes.
• Authenticated happy path with --cwd --agent <id> restricts resolution to that adapter only.
• --json always emits parseable envelope for both success and error paths.
• Missing selector returns INVALID_ARGUMENTS and non-zero exit.
• Multiple selectors together return INVALID_ARGUMENTS and non-zero exit.
• Unknown agent returns INVALID_ARGUMENTS and non-zero exit.
• Unauthenticated user returns AUTH_REQUIRED and remediation text.
• No matching trace returns TRACE_NOT_FOUND and selector hints.
• API failure path returns UPLOAD_FAILED with stable error envelope.
• --follow currently returns NOT_IMPLEMENTED (until follow mode ships).

Skill Wrapper E2E (Per Agent)

• Trigger phrase “share to traces” invokes wrapper and runs canonical command.
• Wrapper passes through URL on success in a consistent response shape.
• Wrapper maps AUTH_REQUIRED, TRACE_NOT_FOUND, INVALID_ARGUMENTS, UPLOAD_FAILED consistently.
• Wrapper works in each agent’s configured skill folder/install location.

Automation Structure

• Add command E2E tests in cli/src/commands/share.e2e.test.ts.
• Use temporary TRACES_CONFIG_DIR, adapter fixture directories, and local HTTP mock server.
• Validate both CLI exit code and stdout/stderr payload contract.
• Add adapter-parity E2E matrix (same assertions, different fixture source format).

Manual Smoke Checklist (Staging)

• Run traces login.
• Run traces share --cwd "$PWD" --agent auto --json.
• Open returned URL and verify trace content renders.
• Re-run same command and verify idempotent behavior.
• Trigger via agent skill phrase and confirm in-chat URL response.

Exit Criteria

• All hermetic E2E scenarios pass in CI.
• At least one staging smoke pass per supported adapter family.
• New-adapter checklist updated so adapter work is incomplete without passing skill-share smoke.

If you want, I can draft the actual share.e2e.test.ts skeleton next with fixture/mocking utilities so implementation can plug in directly.

--cwd "$PWD" means:

• --cwd is the traces share flag for “use this directory as the project context when resolving the current trace.”
• "$PWD" is your shell’s current working directory path (expanded automatically by the shell).

So this:

is equivalent to:

Why quoted?

• Quoting handles spaces safely in paths (e.g. ~/My Projects/repo).

In short: it tells Traces “share the most relevant trace for the directory I’m currently in.”

Great question — and exactly why we called out resolver rules.

With --cwd, if multiple traces match, it should pick deterministically:

• First filter by matching directory (cwd)
• If --agent is provided, only that agent’s traces remain
• Then pick the most recently updated trace (timestamp descending)
• If there’s still a tie, apply a fixed adapter priority order (so it’s stable)

So by default: “latest trace in this folder”.

If you want zero ambiguity, use:

• --trace-id <id> (best)
• or --source-path <path>

We should also return resolver metadata in JSON (selectedBy: "cwd", candidateCount, selectedTraceId) so you can see what it chose.

Yes, absolutely possible — with one caveat: right now share is still a stub, so you can only test wiring/arg parsing until we implement the command body.

How to run in dev mode:

• From cli/:
  • bun run dev -- share --help (or any args)
• You can also run:
  • bun run dev -- share --trace-id test --json
• Use -- so args are passed to the CLI script, not Bun.

How to test with real agents (once share logic lands):

• Start/produce a real session in an agent (Codex/Claude/Cursor/etc.) in some repo folder.
• Run from that same folder:
  • bun run dev -- share --cwd "$PWD" --agent auto --json
• Or force a specific adapter:
  • bun run dev -- share --cwd "$PWD" --agent codex --json
• Or deterministic selector:
  • bun run dev -- share --source-path "/path/to/session/file" --json

Recommended safe dev setup:

• Point config/db to temp locations so you don’t pollute normal local state:
  • TRACES_CONFIG_DIR=/tmp/traces-dev
  • TRACES_EVENTSTORE=/tmp/traces-dev.db
• Keep using .env.local via bun run dev.

So yes: dev-mode + real-agent testing is exactly the intended path, and we can do it as soon as I implement the share command contract behind the current stub.

Nice catch — I implemented share now instead of the stub.

• Built real shareCommand flow in cli/src/commands/share.ts:
  • validates selectors (--trace-id / --source-path / --cwd) and enforces exactly one
  • validates --agent (auto or supported IDs)
  • handles --follow as explicit NOT_IMPLEMENTED (exit code 3)
  • checks API config + auth (API_NOT_CONFIGURED, AUTH_REQUIRED)
  • resolves trace by selector
  • calls TraceController.share(...)
  • emits structured JSON envelopes with stable error codes when --json is set
  • emits human-readable output when --json is not set
• Added deterministic resolver behavior:
  • trace-id exact match
  • source-path exact normalized-path match
  • cwd picks most recent match, tie-break by stable agent priority
• Updated tests in cli/src/commands/share.test.ts to use injected runtime and cover real functional behavior (selectors, auth, not found, JSON/human output, follow not implemented).

You should now be able to run:

Note: in this execution environment I still can’t run Bun (bun: command not found), so please run locally and share the output if anything still misbehaves.

Yep — you ran the monorepo root dev script by accident.

What happened:

• traces/package.json has:
  • dev = concurrently "dev:api" "dev:frontend"
• So when you ran:
  • bun run dev share --cwd ...
• concurrently treated share --cwd ... as a third command, which is why you got:
  • /bin/sh: share: command not found

Use the CLI dev script instead:

• From repo root:
  • bun run dev:cli -- share --cwd "$PWD" --agent auto --json
• Or from cli/:
  • bun run dev -- share --cwd "$PWD" --agent auto --json

Notes:

• The -- is important so args go to your CLI app.
• --cwd "$PWD" should point to the project directory where the agent trace exists (not necessarily traces/cli).

If you want, I can add a root-level shortcut script like bun run share -- --cwd "$PWD" --agent auto --json so this is harder to misuse.

Added a root shortcut script so sharing is easy and unambiguous.

Updated:

• package.json:15

New script:

• share: cd cli && bun run dev -- share

Now you can run from repo root:

This avoids accidentally invoking the monorepo dev script (api + frontend) when you meant CLI share.

Awesome — now test it in two layers:

• command execution inside agent session
• natural-language trigger via skill wrapper

Here’s the quickest path.

1) Command-level test inside a real agent session

• Open a real agent (Codex/Claude/Cursor/etc.) in a project with active trace files.
• Ask the agent to run:
  • bun run share -- --cwd "$PWD" --agent auto --json
• Validate:
  • exit code 0
  • JSON has ok: true
  • data.sharedUrl exists
  • opening URL shows the trace you expect

2) Selector determinism checks

• In that same agent, run:
  • bun run share -- --trace-id "<known-id>" --json
  • bun run share -- --source-path "<known-source-path>" --json
  • bun run share -- --cwd "$PWD" --agent codex --json
• Confirm each selector picks the expected trace.

3) Failure-path checks (important)

• Not logged in:
  • clear creds or use a fresh config dir, then run share
  • expect AUTH_REQUIRED
• bad arguments:
  • pass multiple selectors
  • expect INVALID_ARGUMENTS
• missing trace:
  • fake --trace-id
  • expect TRACE_NOT_FOUND

4) Skill-trigger test (what you really want)
Right now this only works if the agent has the share skill wrapper installed.

• In the agent chat, type: share to traces
• Expected wrapper behavior:
  • runs canonical command internally
  • replies with URL (or mapped error + remediation)

If it does nothing, the wrapper isn’t installed yet for that agent runtime.

5) Per-agent acceptance
For each adapter (codex, opencode, claude-code, cursor, gemini-cli):

• create/update a trace
• run share command from agent context
• run skill phrase
• verify returned URL loads and corresponds to that session

If you want, I can now draft a copy-paste QA checklist markdown file under docs/projects/ for agent-by-agent validation.

Yep, that makes sense — many agent sandboxes won’t have Bun available.

I added an agent-safe fallback wrapper so skills don’t need to depend on Bun directly:

• New wrapper: scripts/share-to-traces.sh
  • tries traces share ... first
  • falls back to bun run dev -- share ... if Bun exists
  • gives a clear error if neither is available
• New root script:
  • bun run share:agent -- --cwd "$PWD" --agent auto --json
• Updated docs to recommend wrapper usage for agent skills:
  • docs/adding-agents.md
  • docs/projects/share-to-traces-skills.md

How to test in an agent now:

• Preferred (skill wrapper should call this):
  • bash ./scripts/share-to-traces.sh --cwd "$PWD" --agent auto --json
• If agent has installed binary:
  • traces share --cwd "$PWD" --agent auto --json

If an agent cannot run any shell commands, then we’ll need a different path (tool/MCP/HTTP action exposed directly to that agent) — shell-based skill wrappers won’t work there.

Nope — not required for end users.

• Real user path should be just: traces share ...
• bun run dev ... is only for local development inside the repo.
• The wrapper I added (scripts/share-to-traces.sh) is a fallback for dev/agent sandboxes, not a product requirement.

So for production skills, the canonical command should stay:

• traces share --cwd "$PWD" --agent auto --json

If you want, I can clean this up now by:

1. removing share:agent from root scripts, and
2. updating docs so wrapper is clearly marked “dev-only optional.”

Perfect — here’s exactly what to do in each agent session.

Use this same script for all agents (codex, opencode, claude-code, cursor, gemini-cli).

• In the agent chat, ask it to run:
  • traces share --cwd "$PWD" --agent auto --json

Then verify:

• It returns JSON with:
  • ok: true
  • data.sharedUrl
  • data.traceId
  • data.agentId
• Open data.sharedUrl and confirm it shows the expected trace.

Then run selector-specific checks:

1. traces share --trace-id "<trace-id-from-json>" --json
2. traces share --source-path "<sourcePath-if-known>" --json
3. traces share --cwd "$PWD" --agent <that-agent-id> --json

Failure-path checks (also important):

1. traces share --json
   • expect INVALID_ARGUMENTS
2. traces share --trace-id does-not-exist --json
   • expect TRACE_NOT_FOUND

Skill trigger test (once wrapper/skill is installed):

• Ask naturally: share to traces
• Expected: agent runs command and replies with share URL (or mapped error + fix).

Quick prompt you can paste into every agent:

If you want, after you run one agent, paste the output here and I’ll validate whether it matches the contract before you run the rest.

Yes — good catch. Right now this is on your feature branch, so it is not in the released traces binary yet.

• If you run traces share ... from an installed version, it may not include your new command yet.
• For development testing, use repo scripts.

Use this flow:

1. Test locally first (no deploy yet)

• From repo root:
  • bun run share -- --cwd "$PWD" --agent auto --json
• Or from cli/:
  • bun run dev -- share --cwd "$PWD" --agent auto --json

2. Yes, you can ask an agent to run Bun

• If that agent environment has Bun + repo checkout, ask it to run:
  • bun run share -- --cwd "$PWD" --agent auto --json
• If agent doesn’t have Bun, it won’t work there until the command is released in installed traces.

3. Deploy/release after local + agent QA

• Once behavior is validated, then merge/release so traces share ... works for end users without Bun.

So: don’t deploy first; do local/agent QA with bun run share ... first, then release.

Yep — right now --follow is a placeholder flag.

What it does today:

• Returns a structured error: NOT_IMPLEMENTED
• Exit code: 3
• No live syncing yet

Commands you can run now:

• Dev (repo root):
  • bun run share -- --cwd "$PWD" --agent auto --json --follow
• Dev (from cli/):
  • bun run dev -- share --cwd "$PWD" --agent auto --json --follow
• Installed CLI (after release):
  • traces share --cwd "$PWD" --agent auto --json --follow

Expected JSON error shape:

Intended future behavior of --follow:

• Share once, then keep watching that trace/session for new events
• Continuously sync appended events to the same shared URL
• Stop on process exit or interrupt (Ctrl+C)