fix(kyberforge): bridge apm content to Claude Code's flat plugin discovery

Claude Code's (and Copilot's) native plugin installer has zero awareness of
.apm/ nesting -- it convention-scans only flat skills/, agents/, commands/,
hooks.json at each plugin's root. Confirmed via strings on the installed
claude binary and live installs of git@holocron/gitea@holocron/kyberforge@
holocron, all reporting Skills(0) Agents(0) Hooks(0) post ADR-0015's apm
conversion. Root cause (apm_cli/core/plugin_manifest.py): apm's plugin.json
compiler deliberately strips skills/agents/commands keys, assuming the host
already auto-discovers those convention directories -- it has no model of
.apm/ being host-visible at all. Separately, apm's own bundle exporter
(apm_cli/bundle/plugin_exporter.py, behind `apm pack --format plugin`)
implements the correct .apm/ -> flat mapping, but only ever targeted
build/<name>-<version>/, a path nothing in marketplace.json's source: points
at.

scripts/sync-plugin-content.sh wraps that bundle exporter and copies its
agents/, skills/, commands/, instructions/, extensions/, and merged
hooks.json back into each plugin's own root as a second tracked
compiled-output category -- same governance status as
.claude-plugin/plugin.json: generated from .apm/, never hand-edited. tests/
subdirectories are excluded from the mirror (dev fixtures, not host-visible
runtime content; several hardcode a relative repo-root walk-up sized for the
.apm/-nested depth, which breaks when duplicated one level shallower).
Applied for real across all 6 plugins and verified two ways: `claude plugin
validate --strict` passes on every real plugin directory, and a live
`claude --plugin-dir <path> -p "list skills/agents"` behavioral test
confirms content is now actually discovered.

Also, from the same issue #90 review round:
- scripts/check-manifests.sh pointed at each plugin's root-level plugin.json
  (checking skills/hooks/mcpServers/agents pointer fields) -- that file was a
  stale near-duplicate of .claude-plugin/plugin.json nothing else read or
  wrote, now deleted across all 6 plugins. check-manifests.sh is rewritten to
  validate .claude-plugin/plugin.json instead, and drops the pointer-field
  checks entirely (nothing to check -- those fields are correctly absent by
  design). Content-presence drift is now check-plugin-content-sync's job, a
  new pre-push hook wired in .pre-commit-config.yaml.

docs/adr/0017 records the root cause and decision in full, including two
rejected alternatives (patching plugin.json's path fields directly -- apm's
compiler strips them on every run; pointing marketplace.json at apm pack's
build/ output -- a version-suffixed non-source directory nothing can install
from without an extra build step). ADR-0015 and CONTEXT.md are updated to
point at it.

Refs: #90
This commit is contained in:
2026-08-13 16:59:03 +00:00
parent 7910b8b12c
commit 38f1ba4e03
217 changed files with 14455 additions and 175 deletions

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# provider-adapter-author
Convert a target repo's provider-specific instruction file (CLAUDE.md, .cursor/rules, copilot-instructions.md, etc.) into a thin adapter over AGENTS.md.
## What it does
Detects a provider-specific AI instruction file in a target repo, diffs it against the repo's `AGENTS.md`, and rewrites it down to a minimal reference — an `@AGENTS.md`-style import for providers that support one, or a text pointer for those that don't — plus only genuinely provider-specific additions. Self-validates its own output with a bundled deterministic script (no LLM judgment, no separate audit skill) before finishing.
## Before you start
The target repo must already have an `AGENTS.md`. If it doesn't, run `agentsmd-author` first — this skill never creates or edits `AGENTS.md` itself.
## Usage
```
/provider-adapter-author
```
Provide the path to the provider-specific file to convert (and the target repo root, if not inferable). Can be invoked directly, or composed into by `agentsmd-author` when it detects an existing provider file with content overlapping AGENTS.md.
## Files
| File | Purpose |
|------|---------|
| `SKILL.md` | Skill instructions for agents |
| `references/sources.md` | Provenance record — the in-repo ADR precedent this skill's design is modeled on |
| `scripts/validate-adapter.sh` | Self-check gate: reference to AGENTS.md present, no excessive duplication, adapter stays thin |
| `scripts/README.md` | Directory documentation for `scripts/` |
| `tests/README.md` | Bats test dependency and run instructions |
| `tests/validate-adapter.bats` | Bats test suite for `scripts/validate-adapter.sh` |

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---
name: provider-adapter-author
description: >
Use when the user wants to convert a provider-specific AI instruction file
(CLAUDE.md, .cursor/rules/*.mdc, copilot-instructions.md, etc.) into a
thin adapter that defers to a repo's AGENTS.md — e.g. "reduce duplication
between CLAUDE.md and AGENTS.md", "make CLAUDE.md just import AGENTS.md"
— even if the pattern isn't named explicitly. Also invoke when
agentsmd-author detects an existing provider file overlapping with
AGENTS.md it just wrote. Detects redundant content in a provider file
relative to AGENTS.md and rewrites it down to a minimal reference (an
`@AGENTS.md`-style import where supported, or a text pointer otherwise)
plus genuinely provider-specific additions. Self-validates via a bundled
deterministic script before finishing. Do not use to write or audit
AGENTS.md itself — use agentsmd-author or agentsmd-audit.
allowed-tools: Bash Read Edit Write
metadata:
category: docs
source_keys:
- adr-0002-0003-two-tier-claude-md
version: "0.1.0"
---
## Gotchas
- Not every provider supports cross-file imports. Claude Code does — a `CLAUDE.md` can consist of nothing but one or more `@path` lines (e.g. `@AGENTS.md`), with no other content required. Cursor's `.cursor/rules/*.mdc` and GitHub Copilot's `copilot-instructions.md` have no native import mechanism as of current tooling — for those, "thin" means a short text pointer to AGENTS.md plus only what that tool actually needs, not a literal import line. Pass `--no-import-syntax` to `scripts/validate-adapter.sh` for these providers.
- This skill never creates or edits `AGENTS.md` itself. If the target repo has no `AGENTS.md` yet, stop and point the user to `agentsmd-author` first — there's nothing to adapt to.
- Only strip content from the provider file that's genuinely redundant with AGENTS.md. Provider-specific material (IDE settings, tool-only syntax, model-specific instructions) stays — the goal is thin, not empty.
- Works standalone or composed-into by `agentsmd-author` — behave identically either way; don't assume a caller skill exists.
## Step 1 — Detect
Look for known provider instruction files in the target repo: `CLAUDE.md` (repo root, and any deployed copies), `.cursor/rules/*.mdc`, `.github/copilot-instructions.md`, and similar tool-specific files. Confirm `AGENTS.md` exists at the repo root — if not, stop and tell the user to run `agentsmd-author` first.
## Step 2 — Diff and rewrite
Read the provider file and `AGENTS.md` side by side. Separate the provider file's content into two buckets: lines that restate what `AGENTS.md` already owns (universal rules, conventions, project overview) versus lines that are genuinely provider-specific (tool syntax, IDE behavior, model-specific instructions). Rewrite the provider file:
- **Providers with import syntax** (Claude Code): replace the redundant bucket with an `@AGENTS.md` (or correct relative path) import line, keep the provider-specific bucket below it.
- **Providers without import syntax** (Cursor, Copilot, etc.): replace the redundant bucket with a short pointer sentence mentioning `AGENTS.md`, keep the provider-specific bucket.
## Step 3 — Self-validate
Run the bundled check before finishing — this is the skill's own closeout gate; there is no separate paired audit skill for this concern:
```bash
bash scripts/validate-adapter.sh [--no-import-syntax] [--max-lines N] <adapter-file> <agents-md-file>
```
Fix any `FAIL` and re-run until it exits `0`.
## Step 4 — Report
State which file was converted, what was removed versus kept, and the validator's final result.

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# Sources
## adr-0002-0003-two-tier-claude-md
- **URL:** (in-repo precedent — not an external source or plugin research corpus entry)
- **Description:** This repo's own two-tier CLAUDE.md/AGENTS.md pattern: AGENTS.md is the provider-agnostic source of always-on rules; provider-specific files (CLAUDE.md) become thin adapters that import it (`@AGENTS.md` plus provider-specific additions). Grounds this skill's entire adapter-conversion design — the "thin adapter" shape, the `@`-import convention, and the size/duplication expectations enforced by `scripts/validate-adapter.sh`.
- **Research doc:** docs/adr/0002-two-tier-claude-md.md, docs/adr/0003-agents-md-provider-agnostic-entry-point.md, providers/claude-code/CLAUDE.md (in-repo ADRs and a live example, not a plugin research corpus entry; referenced here since this skill's design is modeled directly on an existing implementation rather than external research)
- **Contributing files:** SKILL.md
- **Status:** `extracted`

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# scripts/
Deterministic self-check this skill shells out to instead of relying on LLM judgment for a mechanical check.
| File | Purpose |
|------|---------|
| `validate-adapter.sh` | Checks a rewritten provider file (CLAUDE.md, etc.) has a reference to AGENTS.md, doesn't duplicate its content, and stays under a thin-file line threshold |
Takes `<adapter-file> <agents-md-file>`, with optional `--no-import-syntax` and `--max-lines N` flags. Prints `FAIL` findings to stdout and exits non-zero on any failure.

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#!/usr/bin/env bash
set -euo pipefail
usage() {
cat <<EOF
Usage: validate-adapter.sh [--no-import-syntax] [--max-lines N] <adapter-file> <agents-md-file>
Self-check gate for provider-adapter-author. Checks that a rewritten
provider-specific instruction file (CLAUDE.md, .cursor/rules/*.mdc,
copilot-instructions.md, etc.) is actually a thin adapter over AGENTS.md,
not a duplicate copy of it.
Arguments:
adapter-file Path to the provider-specific file to check.
agents-md-file Path to the AGENTS.md file it should defer to.
Options:
--no-import-syntax The target provider has no native cross-file import
mechanism. Accept a plain-text pointer mention of
"AGENTS.md" instead of requiring an @import-style line.
--max-lines N Max non-blank lines allowed in the adapter file before
it's considered no longer "thin". Default: 60.
--help, -h Show this help and exit 0.
Exit codes:
0 Adapter file passes all checks
1 One or more checks failed (empty file, no reference to AGENTS.md,
excessive duplication, or file too long)
EOF
}
NO_IMPORT_SYNTAX=0
MAX_LINES=60
ARGS=()
while [[ $# -gt 0 ]]; do
case "$1" in
--help|-h)
usage
exit 0
;;
--no-import-syntax)
NO_IMPORT_SYNTAX=1
shift
;;
--max-lines)
MAX_LINES="${2:-}"
shift 2
;;
*)
ARGS+=("$1")
shift
;;
esac
done
if [[ ${#ARGS[@]} -lt 2 ]]; then
echo "Error: adapter-file and agents-md-file are required." >&2
echo "" >&2
usage >&2
exit 1
fi
python3 -u - "${ARGS[0]}" "${ARGS[1]}" "$NO_IMPORT_SYNTAX" "$MAX_LINES" <<'PYTHON'
import sys
import os
import re
adapter_path, agents_md_path, no_import_syntax, max_lines = sys.argv[1:5]
no_import_syntax = no_import_syntax == "1"
max_lines = int(max_lines)
if not os.path.isfile(adapter_path):
print(f"Error: '{adapter_path}' is not a file.", file=sys.stderr)
sys.exit(1)
if not os.path.isfile(agents_md_path):
print(f"Error: '{agents_md_path}' is not a file.", file=sys.stderr)
sys.exit(1)
with open(adapter_path, encoding="utf-8", errors="replace") as f:
adapter_content = f.read()
with open(agents_md_path, encoding="utf-8", errors="replace") as f:
agents_md_content = f.read()
has_fail = False
if not adapter_content.strip():
print(f"FAIL Adapter file is empty — {adapter_path}")
print(" Why: An empty adapter carries no reference to AGENTS.md and no provider-specific content.")
print(" Fix: Add at least an import (or text pointer) to AGENTS.md.")
print()
sys.exit(1)
IMPORT_RE = re.compile(r'(?m)^\s*@\S*AGENTS\.md\s*$')
lines = adapter_content.splitlines()
import_lines = [ln for ln in lines if IMPORT_RE.match(ln)]
if no_import_syntax:
has_reference = "AGENTS.md" in adapter_content
else:
has_reference = bool(import_lines) or "AGENTS.md" in adapter_content
if not has_reference:
has_fail = True
print(f"FAIL Adapter has no reference to AGENTS.md — {adapter_path}")
if no_import_syntax:
print(" Why: This provider has no import syntax, so the adapter must at least mention AGENTS.md as a text pointer.")
print(" Fix: Add a sentence like \"See AGENTS.md at the repo root for shared conventions.\"")
else:
print(" Why: A thin adapter must import AGENTS.md (e.g. `@AGENTS.md`) rather than silently omitting it.")
print(" Fix: Add an `@AGENTS.md` (or equivalent relative path) import line.")
print()
# --- Duplication check ---
non_import_lines = [ln for ln in lines if not IMPORT_RE.match(ln)]
adapter_lines = [ln.strip() for ln in non_import_lines if ln.strip()]
agents_lines = {ln.strip() for ln in agents_md_content.splitlines() if ln.strip()}
if adapter_lines:
overlap = sum(1 for ln in adapter_lines if ln in agents_lines)
ratio = overlap / len(adapter_lines)
if ratio > 0.3:
has_fail = True
print(f"FAIL Adapter duplicates AGENTS.md content — {adapter_path}")
print(f" Why: {ratio:.0%} of the adapter's non-import lines already appear verbatim in AGENTS.md. A thin adapter should import shared content, not restate it.")
print(" Fix: Remove the duplicated lines and rely on the AGENTS.md import (or pointer) instead.")
print()
# --- Size check ---
non_blank_count = len([ln for ln in lines if ln.strip()])
if non_blank_count > max_lines:
has_fail = True
print(f"FAIL Adapter is not thin — {adapter_path}")
print(f" Why: {non_blank_count} non-blank lines exceeds the {max_lines}-line threshold for a thin adapter.")
print(" Fix: Move provider-agnostic content into AGENTS.md; keep only genuinely provider-specific additions here.")
print()
if has_fail:
sys.exit(1)
sys.exit(0)
PYTHON