repo-mailbox/skills/coord-send/SKILL.md
Kjell Tore Guttormsen cde185979c feat(board): nested repos enter on a STATE.md, and the scan reports its nevner
Order 20260903T190201Z-238406410-from-.claude (.claude, operator decision
2026-09-03). A git repo nested under a depth-1 REPO was invisible: discovery
adds a depth-1 repo and stops, and the else-branch container scan - the only
place children are ever looked at - is unreachable for an entry that is itself
a repo. Measured before writing anything: 12 nested repos across the real tree,
exactly 1 with a STATE.md (from-ai-to-chitta/content-sadhguru), which had been
running work and reporting to nobody.

Admission is criterion (a) and nothing wider. add_nested_repos() sits beside
add_dot_repos(), never a widening of the `*` loops - the same argument ordre
20260818T124828Z made for dot repos, and the order made it again before this
repo wrote a line: routing a depth-1 repo into the container branch would admit
every vendored clone under claude-code-100x/. One level only; depth 3 is pinned
as NOT admitted. A dot-prefixed depth-1 repo gets the same nested scan, since
nothing in the criterion distinguishes it.

A nested repo now carries TWO names. The board KEY is <parent>/<child> as the
order specifies. The MAILBOX name is not that key: a mailbox is addressed by
basename(git toplevel), so $COORD/<parent>/<child>/inbox finds no directory and
INN/ORDRE/FLY would print 0 for a repo that may have mail - a failed
measurement wearing the reassuring value, in three columns at once. The record
loop carries `mbox` beside `name`; --voyage's order lookup takes
basename($vy_dir) for the same reason. Which dirs are nested is RECORDED by
discovery (NESTED_LIST), not re-derived from "is my parent a repo?", which
would prefix every depth-1 repo if a scan root were ever a checkout.

The denominator line is independent of all of that and went in regardless:
"undersoekt: N katalog(er) depth 1, M polyrepo-container(e), K nestede repo
(J med STATE.md tatt med)". The header count answers how many were found and
nothing about how many were looked at, so a criterion excluding 11 of 12 was
invisible at the surface built to show it. Real tree 2026-09-04: 43 / 5 / 12
(1 tatt med). A non-repo dot-dir counts in N and never in M - it is a
denominator, not a partition.

Its wording broke an existing check: "polyrepo container itself is not listed
as a repo" grepped the whole output for `polyrepo` and matched the footer's own
`polyrepo-container(e)` - the same class as a grep reading a comment that
EXPLAINS a pattern as an instance of it. Now anchored at column 1, which is
what it always meant.

Verified with board.sh, not from memory: from-ai-to-chitta/content-sadhguru
in-progress, Sonnet 5/high, and --plan gives it a real tab with paste=.
Mutation-verified: reverting the eight $COORD/$mbox reads turns exactly the
three mailbox checks red with the rest of the section green.

Bounded gaps, stated rather than closed: the mailbox-keyed JOINS ($OWED,
brief_orphans, --inbox-plan) still key on the board name - neither created nor
worsened here, since the repo was previously absent from RECORDS entirely; a
34-char key overflows the table's %-32s REPO column (same class as Fable
5.1/xhigh in KOST, and widening moves three cut -c89- helpers); a dot-prefixed
NESTED repo is not looked for.

board-selftest 368 -> 393. Suites: coord 257, board 393, route 73, orders 116,
guard 54 = 893. npm test 11/11.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 21:35:55 +02:00

11 KiB

name description version
coord-send Send an inter-repo coordination message through the local coord mailbox — a natural-language front door over the `coord-send` script. Use this whenever the user wants to notify, tell, message, ping, or coordinate with another repository (or all repositories) about work happening in the current repo: "send info to all repos", "tell repo-x the bug is fixed", "let repo Y and Z know", "broadcast that the spec changed", "reply to that coord message", or a deferred/conditional notice like "when the build is green, notify repo X". Also triggers on Norwegian phrasings: "send info til alle repo", "varsle repo X", "gi beskjed til Y og Z", "kringkast at …", "svar på coord-meldingen", "når Z er ferdig, varsle X". Trigger even when the user names a repo plus something to convey without saying "coord" explicitly — routing a message to another repo IS this skill. Also covers retiring a broadcast that has become wrong or obsolete: "retract that broadcast", "that announcement is outdated, pull it", "trekk tilbake kringkastingen", "den broadcasten er utdatert". 0.33.1

coord-send — natural-language front door for inter-repo messages

This skill turns a plain request ("tell repo X that Y happened") into the right coord-send invocation. The script is the engine; this skill is only the mapping from intent to arguments. It never edits mailbox files by hand — always go through the script, because the script owns the filename grammar, frontmatter, and delivery guarantees.

Boundary — why messages are thin

The mailbox is transport, not state. A coord message is a notice, not the source of truth. The durable record of any decision lives in the owning repo's state files / docs and its git history. So when you compose a body, write a self-contained heads-up and point at where the real record lives (a commit hash, a doc path) — don't try to make the message itself the canonical artifact. Coordination content is also private: it never belongs on a public surface.

The engine

CSEND="${CLAUDE_PLUGIN_ROOT}/scripts/coord-send.sh"

There is no deployed copy anywhere else and no fallback path. A Bash tool call never has CLAUDE_PLUGIN_ROOT set as a real shell variable — only this skill's own rendering resolves the token — so a ${CLAUDE_PLUGIN_ROOT:-$HOME/.claude} fallback silently won every time the line above was actually executed, routing through whatever happened to sit at ~/.claude/scripts/coord-send.sh instead of the plugin's own bundled script. That path was never a legitimate parallel deployment — the operator invokes this skill only through its natural-language front door, never a personal terminal alias — so the file that sat there was a pure accident target with no owner keeping it current. It has been deleted. If this fails to resolve, the fix is this expression — never a restored fallback.

Interface (body comes from a quoted heredoc so nothing in it is shell-expanded):

# to one repo
"$CSEND" --to <repo> --subject "<subject>" <<'BODY'
<message body>
BODY

# to every repo (accumulates; first-time newcomers see it too)
"$CSEND" --broadcast --subject "<subject>" <<'BODY'
<message body>
BODY

# reply to a message this repo received (routes to the original sender and
# marks the original handled; target + "Re: …" subject are inferred)
"$CSEND" --reply-to <message-filename> <<'BODY'
<message body>
BODY

# retire one of THIS repo's own broadcasts (no subject, no body)
"$CSEND" --retract <broadcast-filename>

# a notice that needs no answer (any of the forms above)
"$CSEND" --to <repo> --subject "<subject>" --fyi <<'BODY'
<message body>
BODY

Sender identity (--from) defaults to the basename of the current git toplevel, so you almost never set it. Outside a git repo there is no default — the send refuses with exit 2 rather than naming itself after the working directory, so on a global surface (~/repos, $HOME) pass --from <repo> and make the identity a choice. Exit 0 = delivered; exit 2 = usage/IO error (read stderr and fix the arguments rather than retrying blindly).

Does it need an answer? (--fyi)

Every message declares whether its sender expects a reply. Omitting --fyi is the declaration that one is expected — that is the default, and it is the safe one: a forgotten flag over-counts what the recipient owes, which is visible, while the opposite would create debt nobody ever sees.

Pass --fyi when the message is genuinely a notice: "shipped 0.9.0", "the spec moved to docs/x.md", "your build is green again". Omit it when you are asking a question, requesting a decision, or handing over work — anything where silence would leave you blocked.

Two things this flag is not:

  • Not a way to lower the bar for the recipient. Both terminal states stay open on every message: a --fyi message must still be closed with coord-done, and the recipient may still reply. The field says what you expect, and the receiving session is told in as many words that it is a declaration, not an instruction.
  • Not available on a broadcast. --broadcast always writes reply-expected: no, --fyi or not, because there is no reply path to a broadcast at all (--reply-to resolves inside the recipient's own mailbox). Passing it there is harmless and changes nothing.

A reply is not a special case either: --reply-to without --fyi expects one back. When your reply closes the exchange — and it usually does — say so with --fyi rather than leaving the other repo an open item.

Choosing the target

  • One named repo--to <repo>. The repo name is its directory basename; use the name the user gave. No registration exists — sending to a new name just creates that repo's inbox, so a typo silently creates a dead mailbox. If unsure a name is real, check ~/repos/ or existing ~/.claude/coord/<repo>/ before sending.

  • Several named repos ("X and Y") → loop --to once per repo with the same subject and body. There is no multi-target flag; the loop is the mechanism:

    for repo in repo-x repo-y; do
      "$CSEND" --to "$repo" --subject "<subject>" <<'BODY'
    <body>
    BODY
    done
    
  • All repos--broadcast. Prefer this only when the notice genuinely concerns everyone, because broadcasts accumulate and every future first-time repo sees the standing backlog. For a bounded, known set, loop --to instead so unrelated future repos don't inherit it. A broadcast that later turns out wrong can be retired with --retract (see below), but only for repos that have not received it yet.

  • A reply to something received--reply-to <filename>. Use the filename from the injected inbox/archive; it resolves the sender and closes the original in one step.

Retracting a broadcast

When a broadcast has become wrong or obsolete, retire it — don't send a correction and leave the original standing, because every future first-time repo would receive both. --retract <broadcast-filename> archives it out of the delivery queue.

Three things to be honest about when you report it:

  • It is un-send, not recall. Repos that already received the broadcast keep it. Retraction only stops delivery to repos that haven't seen it yet. If the old news actively misleads someone who already got it, a correcting broadcast is still needed — retraction alone does not reach them.
  • Only the sender may retract. The from: field must match this repo's identity. If the announcing repo has since been renamed, its old identity no longer resolves, so pass --from <old-sender> explicitly (read the sender off the file). Say that you did.
  • Nothing is deleted. The message moves to _broadcast/archive/. Never remove a mailbox file by hand — the script owns the filename grammar and delivery guarantees.

Find the filename in ~/.claude/coord/_broadcast/inbox/ (or from the injected --- broadcast: <filename> --- line) rather than guessing it.

Composing the message

Derive a short, specific --subject from the intent if the user didn't give one ("ingest bug fixed", not "update"). In the body, state what happened, what the recipient should know or do, and a pointer to the durable record (commit hash, doc path). Keep it to the point — this is a notice, not a report. Match the repo's language convention for message content; keep it sober and factual.

Deferred and conditional sends

"When Z is done, notify X" means: do not send now. Hold the intent — the target, subject, and body — and continue the work. The moment condition Z is satisfied in this session, fire the send. This works because you carry the intent across turns within a session.

Be honest about the limit: a skill cannot persist intent across sessions. If the session is ending and the condition still hasn't been met, surface the pending message to the user so it isn't silently lost — don't imply it will fire later on its own.

After sending

Report what actually happened: the target(s), the subject, and the delivered filename(s) from the script's stdout. If a send failed (exit 2), say so with the stderr reason rather than claiming success. Delivery reaches the recipient at their next session start (the receive side is a hook), so tell the user it's queued, not that the other repo has seen it.

Examples

Example 1 — single repo, composed body Input: "tell repo-x the ingest bug is fixed, it was commit abc1234" Action: --to repo-x --subject "ingest bug fixed", body naming the fix and pointing at commit abc1234 and the owning doc.

Example 2 — broadcast Input: "let all the repos know the shared spec grew a new validation rule" Action: --broadcast --subject "spec: new validation rule", body summarizing the change and pointing at the spec's owning repo.

Example 3 — bounded multi-target Input: "gi beskjed til repo-x og repo-y om at gaten er re-pinnet" Action: loop --to repo-x then --to repo-y, same subject "shared gate re-pinned".

Example 4 — deferred Input: "når testene er grønne, varsle repo-y" Action: keep working; once the test run passes this session, send --to repo-y with the green result. If the session ends first, surface the pending notice to the user.

Example 5 — reply Input: "svar på coord-meldingen fra repo-x at vi tar det" Action: --reply-to <that-message-filename>, body acknowledging and stating the plan.

Example 6 — retract Input: "den gamle kringkastingen om plugin-navnet er utdatert, trekk den" Action: locate the file in _broadcast/inbox/, then --retract <that-filename> (adding --from <old-sender> if this repo has been renamed since). Report that repos which already received it are unaffected.