batch_run ended with a bare wait, which blocks on every background job the calling shell has, not the ones it started. Harmless for all three current callers, but a future caller that backgrounds anything of its own would have batch_run block on it or consume its status. It now records each $! and reaps exactly those PIDs. The `wait "$pid" || true` there is load-bearing: unlike a bare wait, wait <pid> returns the job's status, so without it a single failing job would abort the set -e caller at the call site -- before run-tests.sh or sync-plugin-content.sh could read their .status files and print a summary. Status semantics stay in those files, exactly as before. check-vale-style-sync.sh's glob probe discarded vale's exit code and output and decided purely on a grep, so a failed exec, an OOM-killed vale or a full TMPDIR was indistinguishable from a real glob defect -- both printed "its glob sections do not cover a path" with no evidence. A flake seen once in this probe could not be diagnosed afterwards for that reason. The probe now attaches vale's rc and output: a genuine glob defect reads "vale exited 0 ... in 0 files", a killed vale reads "vale exited 137; output: <empty>". That flake was investigated and not reproduced -- 1680 probes across three contention setups including an offline namespace, all clean -- so nothing is changed speculatively. The misattribution is worth recording: it was reported against tests/test-vale-wrap.sh, which never invokes this script; the assertion belongs to check-vale-style-sync.sh and reaches a log through a different suite. Also drops the last stale field roster from agent-author's scaffolder. Its next-steps hint enumerated "(name, description, model, body only)" -- omitting disallowedTools, and never accurate anyway, since the template marks only description and the body FILL IN. Its --help carried the inverted form, already missing six forbidden fields. Both now state the shape rule and point at field-inventory.md, and a bats case enforces all-or-nothing: name every allowlisted field or name none, since a partial roster is the shape that goes stale silently. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01X7GvKuJfy2WrdBmUttV4DT
agent-author
Creates and improves agent definition files for Claude Code and GitHub Copilot CLI.
What it does
Scaffolds and fills in agent definition files at plugin/APM, project, or user scope. Project and user scope always generate a Claude Code + Copilot CLI file pair (.md + .agent.md) in one pass. Plugin/APM scope generates a single vendor-neutral .apm/agents/<name>.agent.md file instead — no separate Claude Code / Copilot split, since apm compile has no per-target field integrator (see ADR-0016). Also applies improvement signals — grill output, inline feedback, session context — to existing agent files. Bumps the version after every change: the resolved package's apm.yml at plugin/APM scope (minor for new agents, patch for improvements); project/user scope has no manifest to bump.
Before you start
Have ready: the agent's name (kebab-case), the root directory (plugin root, project root, or ~), a one-sentence purpose, and the triggering condition (when should the runtime delegate to this agent?).
Usage
/agent-author
Manual scaffold (human workflow):
bash scripts/new-agent.sh <agent-name> <root>
# Examples:
bash scripts/new-agent.sh code-reviewer packages/my-package/ # plugin/APM scope if packages/my-package/apm.yml has a type: field
bash scripts/new-agent.sh deploy-assistant .
bash scripts/new-agent.sh security-reviewer ~
Files
| File | Purpose |
|---|---|
SKILL.md |
Skill instructions for agents |
scripts/new-agent.sh |
Scaffolds agent definition file(s) from templates — a single .apm/agents/<name>.agent.md at plugin/APM scope, or a Claude Code + Copilot CLI pair at project/user scope |
references/deployment-modes.md |
Plugin/APM vs project vs user scope: restrictions, scoped identifiers, path conventions |
references/scripts.md |
Conventions for new-agent.sh and any future scripts: contract, template variables, file placement, error messages |
references/sources.md |
Research provenance — sources that informed this skill |
assets/templates/claude-code.md |
Annotated Claude Code agent definition template (project/user scope) |
assets/templates/copilot.agent.md.template |
Annotated Copilot CLI agent definition template (project/user scope) |
assets/templates/apm-agent.md |
Annotated vendor-neutral APM agent definition template (plugin/APM scope) |
tests/new-agent.bats |
(source-only) bats tests for scripts/new-agent.sh |
assets/README.md |
Directory meta-documentation for assets/ |
references/README.md |
Directory meta-documentation for references/ |
scripts/README.md |
Directory meta-documentation for scripts/ |
tests/README.md |
(source-only) bats dependency instructions and run command |
Rows marked (source-only) exist in the authoring source (.apm/skills/agent-author/) but are
not present in an installed plugin: scripts/sync-plugin-content.sh strips
<category>/<name>/tests when it generates the flat mirror, because these are dev-time fixtures no
plugin host needs to discover (ADR-0017). Run them from a repo checkout, not from an install. The
assets/templates/ rows above are unaffected — the exclusion is depth-scoped to
<category>/<name>/tests, so template trees that themselves contain a tests/ directory ship
intact.