The SessionStart announce no longer forces a watch-loop bootstrap on every session — it now emits a short pointer instructing Claude to invoke the new mailbox-collaborate skill (or /collaborate slash command) when the user wants peers to wake them mid-task. Messages still surface on the next user prompt via the UserPromptSubmit hook even without the watcher, so nothing is lost; idle sessions just stop burning relaunch tokens.
The watch-loop protocol (exit codes, rename handling, mail handling) moves from the hook prose into the new skill body, where it only loads when actually needed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The previous skill assumed a happy-path environment and silently
broke on real installs. Hardened the flow:
- Always pass --@kuns:registry on every npm call, so the upgrade
survives an unreadable user .npmrc (e.g. roaming HOME on a
network share that npm can't access).
- Treat /health as the ground truth, not `claude-mailbox status`.
Status only reflects the autostart wrapper and silently lies
when the inner process crashed at boot.
- Capture state before changing anything (CLI version, autostart
state, port, daemon /health version) so failures can roll back
to "do nothing — old daemon keeps running".
- Detect the "daemon reachable but autostart NotInstalled" case
(manual foreground serve) and refuse to swap binaries from
under it.
- After restart, poll /health for up to 10s and verify the live
daemon's version matches LATEST; on timeout, dump the platform-
appropriate daemon log tail instead of just reporting "Stopped".
- Reorder: install first, then stop+start. Downtime is paid only
after the new binary is verified on disk.
Mailbox names are now built as <project>-<session-short>, where <project>
is the sanitized git-repo basename (or cwd basename) — no more env-var
prefix step. Sessions can re-tag themselves at runtime via the new
mcp__mailbox__rename tool (POST /v1/rename), which transfers all
pending messages to the new name in a single transaction. Peers using
the old name re-discover via list_mailboxes.
BREAKING: \$CLAUDE_MAILBOX_NAME is no longer read. Existing setups that
relied on the env-var prefix should remove it from .claude/settings.json;
the prefix now comes from the working directory automatically.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Native binding caused install pain on every new Node major (no prebuilts +
node-gyp needs VS+Windows SDK to fall back). For this project's workload
(a few ops/day, no advanced SQLite features) better-sqlite3's perf edge is
irrelevant — node:sqlite's bundled, ABI-stable sync API is the better fit.
- db.ts: DatabaseSync, db.exec("PRAGMA …"), explicit BEGIN/COMMIT helper to
replace db.transaction(); row casts go through unknown because node:sqlite
returns Record<string, SQLOutputValue>.
- package.json: drop better-sqlite3 + @types/better-sqlite3, bump
engines.node to >=24, vitest 2 → 4 (2.x couldn't resolve `node:sqlite`).
- mailbox-doctor: add Step 1 that enforces Node ≥24 with a concrete fix
message, renumbers downstream steps.
Node 1.2.0 → 1.3.0. 35 transitive packages removed from the lockfile.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
47822 collided with ClaudeDo.Worker.exe on at least one user's machine.
37849 is high, registered to nobody, and avoids the prior conflict.
Both the Node port and the .NET port move together (still
wire-compatible). Defaults change only — if a user has a custom port
in mailbox.json, that stays.
Two production-readiness fixes so colleagues can install cleanly:
1. Plugin's MCP server now spawns `claude-mailbox mcp-stdio`, a small
stdio MCP wrapper that proxies tool calls to the daemon's REST API.
Claude Code does not support env-var substitution in HTTP MCP `url`
fields (issue #46889), so the wrapper is the only way to make the
daemon URL configurable per machine via CLAUDE_MAILBOX_URL.
2. Windows `install-autostart` now falls back from `schtasks /Create`
to an HKCU\Software\Microsoft\Windows\CurrentVersion\Run entry
when Group Policy blocks the Scheduled Task path. Both modes are
per-user, no admin, persist across logoffs. The chosen mode is
recorded in ~/.claude-mailbox/autostart-mode so status/start/stop/
uninstall-autostart pick the right cleanup path.
Also bumps the npm version to 1.0.1 to align with the published 1.0.0
plus this patch.
The plugin's UserPromptSubmit and SessionStart hooks call `claude-mailbox`
with no --url flag, so they previously always hit the hardcoded
http://127.0.0.1:47822/mcp default. If port 47822 was held by another
local service (e.g. ClaudeDo), the daemon couldn't bind there and every
hook was talking to the wrong process.
CLI default for --url now resolves to $CLAUDE_MAILBOX_URL when set,
falling back to http://127.0.0.1:47822. Doctor gained a Step 2 that
probes /health on 47822, identifies foreign occupants, picks a free
port, writes both ~/.claude-mailbox/mailbox.json and the
CLAUDE_MAILBOX_URL entry in .claude/settings.json env so the hooks
follow along automatically.
Also adds a fallback hint when Windows schtasks /Create fails with
Access is denied (Group Policy restricts non-admin task creation): run
install-autostart from an elevated shell, or accept an ephemeral serve
for the current session.
The hook now derives a unique mailbox name from the session_id supplied
on hook stdin, so two parallel Claude Code sessions in the same project
get distinct mailboxes (e.g. `claude-a8b3c1d2`, `claude-d4e5f6a7`)
instead of colliding on a shared env value. An optional
CLAUDE_MAILBOX_NAME base prefix flavors the names as `<base>-<sid>`.
Adds:
- `claude-mailbox session-announce` subcommand for the new SessionStart
hook, which prints the current session's mailbox name to context
- `/claude-mailbox:mailbox-update` slash command for `npm update` +
daemon restart
- stdin parsing helpers (parseHookStdin, deriveSessionName) with unit
tests; the doctor no longer needs a mandatory name prompt
The doctor command runs entirely inside Claude Code and walks through:
binary install via npm, daemon autostart, mailbox-name prompt with write
to per-project `.claude/settings.json` env, and a self → self smoke test.
Also adds `/claude-mailbox:mailbox-status` as a read-only health check.
Reduces the colleague onboarding to: add marketplace, install plugin,
run the doctor — no terminal context-switch required.
