chore: standardize the ai-agent caller stub (identical in every repo)

The caller workflow had drifted between repos (run-name, stale SHA comment, trigger ordering,
different comment text) though all were functionally the same `uses: agent.yml@main`. Define one
canonical stub: make this repo's own ai-agent.yml the reference and update the README "Use it in a
repo" block to match it verbatim, noting that the on: triggers and the jobs.agent wrapper are the
irreducible minimum for a reusable (workflow_call) workflow.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/ai-agent.yml

@@ -1,6 +1,8 @@
 name: ai-agent
-# Thin caller so the agents work on THIS repo too (their own workflow). Same shared logic.
+# Standard caller for the shared AI-agent workflow (ffaerber/agents). Copy this file VERBATIM into
-# New issues opened by ffaerber auto-start @pm; @mention an agent in a comment to route on replies.
+# any repo that should get the agents — it is identical in every repo. All logic + scripts live in
+# agents/.gitea/workflows/; scripts are fetched from @main at run time. The `jobs.agent` wrapper is
+# required: a reusable (workflow_call) workflow can only be invoked from a caller job, not top-level.
 on:
   issue_comment:
     types: [created]

.gitea/workflows/scripts/run-agent.sh

@@ -10,7 +10,10 @@ set -u
 [ -z "$CMT" ] && CMT="(a new issue was just opened — assess it)"
 THREAD=$(cat /tmp/thread.md 2>/dev/null); [ -z "$THREAD" ] && THREAD="(no prior comments)"
 DESC=$(jq -r --arg a "$NAME" '.[$a].desc' /tmp/agents.json)
-ROSTER=$(jq -r 'to_entries | map("- @\(.key): \(.value.desc) (vision: \(.value.vision))") | join("\n")' /tmp/agents.json)
+# Include each teammate's skills so an agent (esp. @pm) can route by capability — e.g. only
+# @senior/@lead hold node1-ssh, so a node1 task must not go to @junior. Skill *names* only; the
+# scoped how-to detail stays hidden per the permission.skill allow-list.
+ROSTER=$(jq -r 'to_entries | map("- @\(.key): \(.value.desc) (vision: \(.value.vision); skills: \(.value.skills | if length>0 then join(", ") else "none" end))") | join("\n")' /tmp/agents.json)
 if [ "$VISION" = "true" ]; then CAP="You CAN read images attached to the issue."; else CAP="You CANNOT read images — you are a text-only model."; fi
 NOTE=""
 if [ "$VISION" != "true" ] && [ "${HAS_IMAGES:-0}" -gt 0 ]; then

README.md

@@ -29,10 +29,16 @@ detail out of agents that shouldn't act on it while still letting them know the
 
 ## Use it in a repo
 
-Add `.gitea/workflows/ai-agent.yml` to the consuming repo:
+**The standard caller is one file, identical in every repo.** Copy this repo's own
+[`.gitea/workflows/ai-agent.yml`](.gitea/workflows/ai-agent.yml) verbatim into the consuming repo —
+it is the source of truth, and `agents` itself uses the same file:
 
 ```yaml
 name: ai-agent
+# Standard caller for the shared AI-agent workflow (ffaerber/agents). Copy this file VERBATIM into
+# any repo that should get the agents — it is identical in every repo. All logic + scripts live in
+# agents/.gitea/workflows/; scripts are fetched from @main at run time. The `jobs.agent` wrapper is
+# required: a reusable (workflow_call) workflow can only be invoked from a caller job, not top-level.
 on:
   issue_comment:
     types: [created]
@@ -44,7 +50,9 @@ jobs:
     secrets: inherit
 ```
 
-That's the whole per-repo footprint. All the logic (agent registry, routing, delegation,
+That's the whole per-repo footprint, and it's the minimum a caller can be: the `on:` triggers must
+live in each repo (a reusable workflow can't declare its callers' triggers) and the `jobs.agent`
+wrapper is mandatory for `workflow_call`. Everything else (agent registry, routing, delegation,
 reactions, PR/issue plumbing) lives here in `agent.yml`.
 
 ## Repo layout