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Lifts the RFC 010 § Deferred restriction that the server had to launch in the
workspace ("cwd must equal the launch directory"). An editor can now open any
project folder, and N concurrent sessions over one connection can each target a
different directory.
- packages/acp: drop the `cwd === process.cwd()` guard in validateWorkspaceParams
(keep "must be absolute" — the cwd becomes the session header / bash workdir),
and drop the persisted-cwd-vs-launch-dir check in session/load (a resumed
session keeps its original header.cwd, so its bash tools run in its workspace).
- packages/tool-bash: the missing link — default the bash workdir to the calling
agent's session cwd (`exec.agent.session.header.cwd`) via a new resolveWorkdir
helper. An explicit model `workdir` still wins; a relative one resolves against
the session cwd. This is the only correct spot for multi-session: N sessions
share one ctx.bash executor, so the workdir must come per-call from exec.agent,
not executor config. Falls back to the executor default when no session cwd is
available (preserves non-ACP behavior).
- Trust: the cwd originates from the ACP client (the user's editor) at
session/new — same trust level as the old launch dir; no new untrusted-input
path. `additionalDirectories` (scope widening / sandbox) stays rejected.
- Tests: bridge accepts any absolute cwd + records it on the header; session/load
honors the persisted cwd; bash defaults to / resolves relative against the
session cwd; two sessions with different cwds each run bash in their own dir;
non-absolute cwd still rejected. 100% per-file coverage maintained.
- Docs: RFC 010 status + § Deferred cwd bullet marked RESOLVED; acp README adds a
Per-session cwd section; tool-bash + example READMEs and e2e comments updated.
Examples
Runnable demos (not workspaces) that showcase how the harness is wired.
echo-agent
A mock model + echo tool + stdio UI + JSONL persistence demo. Demonstrates:
- Loading plugins from a
cordis.ymlvia@cordisjs/plugin-loader+@cordisjs/plugin-include - Registering a mock
LlmAdapter(streaming scripted responses) - Registering a tool via
ctx.tools.register() - Persisting session events to JSONL via the
session/event+session/flushpattern - A minimal stdio UI consuming
agent/stream-chunkand session events
Run with: pnpm run demo:echo
When prompted, type "echo " to trigger a tool call round-trip.
coding-agent
The real thing: DeepSeek V4 + the bash tool suite + stdio chat + JSONL persistence, wired from cordis.yml. Where echo-agent proves the skeleton with mocks, this is a usable coding assistant.
Run with: pnpm run demo:coding (needs DEEPSEEK_API_KEY in the environment or a gitignored repo-root .env). See coding-agent/README.md for details.