Files
holocron/plugins/kyberforge/skills/agent-audit/scripts/validate.sh
Defame1297 b6e68e9a2b fix(kyberforge): close the vacuous-pass paths in the ADR-0020 gate scripts
Three ways the gates could report green having measured nothing. All three were
invisible to a passing test suite, because pre-commit prints nothing at all for a
hook that exits 0 — a gate that declines to check and a gate that checked and
passed produce the identical signal.

- A UTF-8 BOM, a leading blank line, a trailing space after a `---` marker or
  CRLF line endings defeated the `^---\n` frontmatter matcher. Every ADR-0020
  check was then skipped and the file passed: measured at the time, a
  550-character description with a 1,000-word body exited 0 behind a BOM.
  All four shapes are now tolerated, and frontmatter that genuinely cannot be
  parsed is a hard ERROR rather than a silent skip.
- An agent file with a valueless `description:` followed by another key let a
  line regex capture the *next* key, which looked non-empty, so the
  missing-or-empty branch never fired and every gate below it early-returned on
  the empty folded value — zero output, exit 0, on a blocking gate. The one
  field this contract is entirely about was the one field a gate could fail to
  notice was absent. Presence is now decided on the YAML-folded value and
  nowhere else, and a missing or empty description is a hard FAIL in all three
  validators.
- The hand-rolled frontmatter fallback disagreed with PyYAML across the FAIL
  boundary on folded scalars, so which reader happened to be available decided
  the verdict. A fallback that mis-parses a scalar shape reports a vacuous pass,
  which is worse than not running, so it is deleted: python3 and PyYAML are hard
  requirements that fail loudly with an install pointer.

Boundary-target resolution no longer derives its universe from its own location.
A `${BASH_SOURCE}`-relative repo root leaked this repo's 39-skill universe into
every consumer repo running the hook through pre-commit, so a consumer skill
routing to `skill-audit` resolved against a plugin it had never installed. The
interim form resolved through `.claude/` and `.agents/`, which are gitignored
`apm install` output — the same commit reported 2 dangling targets on a machine
that had run the install and 6 on a fresh clone. Resolution now walks up from the
file being checked to an authoring root (nearest ancestor holding
`plugins/*/.apm/{skills,agents}`, else the nearest `.git`, in two passes so a
nested `.git` cannot outrank a real monorepo root); the universe is every skill
and agent under `<root>/plugins/*/` plus the file's own apm package and that
package's declared `dependencies.apm`. Deployed trees are consulted only when no
authoring root exists at all — the consumer case. One commit now gets one verdict,
which a gate shipping hot with no baseline file has to.

Narrowed in the same pass: a routing target inferred from the prose boundary form
and corroborated by nothing else reports at SUGGESTION instead of blocking. A
blocking check with no escape hatch is the wrong trade when the inference from
prose is the weak part of it.

New deterministic checks, all previously untested or absent: every
`references/<file>.md` a body names must exist (ERROR — a broken pointer is not a
style opinion); a description with no boundary clause at all, a Gotchas section
over five entries, and a Gotchas section over 25% of the body are SUGGESTIONs.
Where no universe can be determined the target check prints `INFO ... DID NOT
RUN` rather than passing quietly. Each prose-scanning check needed its own
false-positive fix — a fenced example of a Gotchas section was being read as the
section itself — and those fixes are pinned rather than assumed.

The resolver is one block copied verbatim into all three scripts between
BEGIN/END markers, because a cache-installed plugin's scripts cannot read outside
their own plugin directory. Nothing asserted the copies were still identical; a
one-line edit to a single copy passed every constant-agreement assertion, since
constants are not what drifts.

Tests land here rather than in a later commit. The existing suites assert the old
behaviour and go red against these scripts, so splitting them would leave a commit
whose own `run-tests` pre-push gate fails in isolation.

Refs: ADR-0020
2026-08-16 16:39:29 +00:00

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#!/usr/bin/env bash
set -euo pipefail
usage() {
cat <<EOF
Usage: validate.sh <agent-file>
Validate an agent definition file against the agent definition spec.
At plugin/APM scope, <agent-file> is a single vendor-neutral
.apm/agents/<name>.agent.md file with no counterpart. Its frontmatter allowlist
is not restated here: it is read at load time from the apm-agent-allowlist
section of references/field-inventory.md, which is the authoritative list.
At project or user scope, <agent-file> is either half of a Claude Code .md /
Copilot .agent.md pair.
Arguments:
agent-file Path to the agent file (or either half of a project/user-scope pair).
Exit codes:
0 All checks passed (may include SUGGESTIONs)
1 One or more checks failed
2 Script error (unrecognized file extension or missing field-inventory.md)
EOF
}
if [[ "${1:-}" == "--help" || "${1:-}" == "-h" ]]; then
usage
exit 0
fi
if [[ $# -lt 1 ]]; then
echo "Error: agent-file is required." >&2
echo "" >&2
usage >&2
exit 1
fi
# PyYAML is a HARD dependency, not a nice-to-have. The description VALUE has to
# be measured after YAML folding is resolved, and the hand-rolled reader that
# used to stand in for PyYAML disagreed with it across the 400-character FAIL
# boundary — same description, two verdicts, depending on which reader ran.
# Refusing to start is the only honest option; the repo's jq / apm / vale
# dependencies are declared the same way.
# Check the interpreter separately from the library: `python3 -c` fails the same
# way whether python3 is missing or PyYAML is, and reporting the wrong missing
# dependency sends the reader to install the wrong thing.
if ! command -v python3 > /dev/null 2>&1; then
echo "Error: python3 is required but was not found on PATH." >&2
echo " Why: skipping the ADR-0020 description and boundary-target gates would be a vacuous pass." >&2
echo " Fix: install python3 (pre-commit itself is a Python application, so it is almost certainly already present)." >&2
exit 1
fi
if ! python3 -c 'import yaml' > /dev/null 2>&1; then
echo "Error: PyYAML is required but is not importable by python3." >&2
echo " Why: skipping the ADR-0020 description and boundary-target gates would be a vacuous pass." >&2
echo " Fix: python3 -m pip install PyYAML (or your distro's python3-yaml package)." >&2
exit 1
fi
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
python3 -u - "$1" "$SCRIPT_DIR" <<'PYTHON'
import sys
import os
import re
import glob
import yaml
agent_file = os.path.abspath(sys.argv[1])
script_dir = sys.argv[2]
fname = os.path.basename(agent_file)
# --- Detect provider (check .agent.md before .md) ---
if fname.endswith('.agent.md'):
provider = 'copilot'
name_stem = fname[:-len('.agent.md')]
elif fname.endswith('.md'):
provider = 'claude-code'
name_stem = fname[:-len('.md')]
else:
print(f"Error: unrecognized extension '{fname}' — expected .md or .agent.md", file=sys.stderr)
sys.exit(2)
# --- Load field-inventory.md ---
inv_path = os.path.normpath(os.path.join(script_dir, '..', 'references', 'field-inventory.md'))
if not os.path.isfile(inv_path):
print(f"Error: field-inventory.md not found at {inv_path}", file=sys.stderr)
sys.exit(2)
# Encoding is pinned to UTF-8 rather than inherited from the locale: under
# LC_ALL=C the inherited default is ASCII, and this file legitimately carries
# non-ASCII prose. read_text() in the shared resolver block below does the same
# thing for every other file; this one is read before that block is defined.
try:
with open(inv_path, encoding='utf-8') as f:
inv_content = f.read()
except UnicodeDecodeError as exc:
print(f"Error: field-inventory.md at {inv_path} is not valid UTF-8 "
f"({exc.reason} at byte {exc.start}) — re-save it as UTF-8.",
file=sys.stderr)
sys.exit(2)
def parse_section_tokens(content, section_name):
lines = content.splitlines()
for i, line in enumerate(lines):
if line.strip() == f'## {section_name}':
for j in range(i + 1, len(lines)):
stripped = lines[j].strip()
if stripped and not stripped.startswith('#') and not stripped.startswith('---'):
return set(stripped.split())
return set()
cc_only_fields = parse_section_tokens(inv_content, 'claude-code-only-fields')
copilot_only_fields = parse_section_tokens(inv_content, 'copilot-only-fields')
apm_agent_allowlist = parse_section_tokens(inv_content, 'apm-agent-allowlist')
# Tools the runtime withholds from subagents regardless of the tools field
SUBAGENT_UNAVAILABLE_TOOLS = {
'AskUserQuestion', 'EnterPlanMode', 'ExitPlanMode', 'ScheduleWakeup', 'WaitForMcpServers',
}
# Copilot body length limit (chars) — content beyond this is silently truncated
COPILOT_BODY_LIMIT = 30000
# ADR-0020 description budget. An agent's name + description is preloaded into
# every session exactly like a skill's, so agents take the SAME description
# gates. These two constants are DUPLICATED from scripts/skill-size-check.sh
# and skill-audit/scripts/validate.sh rather than shared from one file: a
# cache-installed plugin's scripts cannot read files outside their own plugin
# directory, so there is no single source to share (same rationale as
# vale-wrap.sh's per-plugin duplication). tests/test-skill-size-check.sh
# asserts all copies agree, so drift fails CI rather than silently diverging.
#
# Agents deliberately take NO body word gate, and adding one here would
# contradict ADR-0020: a skill body is loaded into the caller's context and
# competes with the live conversation, while an agent body becomes the system
# prompt of a fresh context. The rationale for the 900-word skill ceiling does
# not transfer. Agent body length falls out of the delegation rule instead.
DESC_SUGGEST_CHARS = 250
DESC_MAX_CHARS = 400
# --- Helpers (shared by every scope) ---
failed = False
suggestions = []
def fail(msg):
# stderr, matching scripts/skill-size-check.sh's ERROR routing. All three
# scripts in the ADR-0020 family now agree: findings that fail the run go to
# stderr, everything advisory (SUGGESTION / INFO) goes to stdout. Both repo
# callers (check-apm-agents-valid.sh, check-scope-walkup-sync.sh) capture
# `2>&1`, so nothing a human reads moves.
global failed
failed = True
print(f"FAIL {msg}", file=sys.stderr)
def suggest(msg):
suggestions.append(msg)
def info(msg):
# A check that DECLINED to run says so out loud, rather than passing
# silently. Silence is what let a whole gate family go missing unnoticed.
print(f"INFO {msg}")
PLACEHOLDER_RE = re.compile(r'(?<!`)FILL IN:[^`\n]')
# ===== BEGIN ADR-0020 SHARED BOUNDARY RESOLVER =====
# ONE resolver, embedded VERBATIM in three scripts:
# scripts/skill-size-check.sh
# plugins/kyberforge/.apm/skills/skill-audit/scripts/validate.sh
# plugins/kyberforge/.apm/skills/agent-audit/scripts/validate.sh
# The block between these markers must stay byte-identical in all three. It is
# copied rather than imported because a cache-installed plugin's scripts cannot
# read files outside their own plugin directory, so there is no single file all
# three can share (same constraint that forces the ADR-0020 constants to be
# duplicated). Edit one copy, then paste it over the other two.
#
# Requires: glob, os, re, yaml (imported by the host script; PyYAML is a hard
# dependency, preflighted in bash before the interpreter starts).
# --- Input ----------------------------------------------------------------
# Every file this resolver's callers read goes through read_text(), which pins
# UTF-8 explicitly instead of inheriting locale.getpreferredencoding(). Under
# LC_ALL=C that inherited encoding is ASCII, so a perfectly ordinary em dash in
# a SKILL.md aborted the run with a bare UnicodeDecodeError traceback — loud,
# but pointing at the interpreter rather than at the file or the fix. A file
# that genuinely is not UTF-8 still fails; it just says so.
class EncodingError(Exception):
pass
def read_text(path):
"""File contents as text, UTF-8, with a diagnostic instead of a traceback."""
try:
with open(path, encoding='utf-8') as fh:
return fh.read()
except UnicodeDecodeError as exc:
raise EncodingError(
"not valid UTF-8 (%s at byte %d) — re-save the file as UTF-8; "
"this gate does not guess at other encodings"
% (exc.reason, exc.start))
# --- Universe ------------------------------------------------------------
# The set of names a boundary clause may resolve against is derived from an
# AUTHORING ROOT found by walking up FROM THE TARGET FILE. It is NEVER derived
# from this script's own location: deriving it from ${BASH_SOURCE} leaked
# holocron's 39-skill universe into every consumer repo that ran this hook
# through pre-commit, so a consumer skill routing to `skill-audit` resolved
# against a plugin it had never installed.
#
# An authoring root is the nearest ancestor holding plugins/*/.apm/skills/ or
# plugins/*/.apm/agents/ (a plugin monorepo), falling back to the nearest
# ancestor holding .git. When one is found the universe is:
# 1. every skill and agent under <root>/plugins/*/ — sibling plugins resolve,
# which is what a monorepo means,
# 2. the target's own apm package,
# 3. the packages that package DECLARES in apm.yml dependencies.apm.
# Deployed .claude/ and .agents/ trees are deliberately NOT consulted in that
# case. They are `apm install` output, gitignored, and present only on a machine
# that has run it: four cross-plugin targets in this repo (gitea-branches ->
# git-branches, gitea-branches -> git-history, gitea-issues -> git-branches,
# gitea-workflow -> git-workflow) resolved through .claude/skills/ alone, so the
# same commit measured 2 dangling targets on a developer machine and 6 on a
# fresh clone. A gate shipping hot with no baseline cannot give two answers.
#
# Deployed trees are used only when NO authoring root exists — the consumer
# case, where the file being checked lives in or beside a deployed tree and
# there is no monorepo to read.
def _is_fs_root(path):
return os.path.dirname(path) == path
def _collect_package(pkg_dir, names):
"""Add every skill/agent name a package directory exposes, any layout."""
for sub in ('.apm/skills/*/', 'skills/*/'):
for path in glob.glob(os.path.join(pkg_dir, sub)):
names.add(os.path.basename(path.rstrip('/')).lower())
for sub in ('.apm/agents/*.md', 'agents/*.md'):
for path in glob.glob(os.path.join(pkg_dir, sub)):
base = os.path.basename(path)
if base.endswith('.agent.md'):
base = base[:-len('.agent.md')]
else:
base = base[:-len('.md')]
names.add(base.lower())
def _apm_package_root(start_dir):
"""Nearest ancestor that is an apm package root (apm.yml or .apm/).
The filesystem root is never a candidate: a stray /.apm/skills/ — a
scaffolding test's leftover, say, and one really does exist on at least one
machine here — would otherwise become the package root of every path on it.
Capped at ten levels so a pathological path can't become a filesystem
crawl; that covers every real layout by a wide margin.
"""
current = os.path.abspath(start_dir)
for _ in range(10):
if _is_fs_root(current):
return None
if (os.path.isfile(os.path.join(current, 'apm.yml'))
or os.path.isdir(os.path.join(current, '.apm'))):
return current
current = os.path.dirname(current)
return None
def _authoring_root(start_dir):
"""Nearest ancestor that is a plugin monorepo, else the nearest .git tree.
Two passes, not one interleaved walk: a nested .git (a submodule, a
worktree of a sub-package) must not win over a real plugins/ root further
up. Both passes stop before the filesystem root for the same reason
_apm_package_root does.
"""
for probe in (
lambda d: bool(glob.glob(os.path.join(d, 'plugins', '*', '.apm', 'skills'))
or glob.glob(os.path.join(d, 'plugins', '*', '.apm', 'agents'))),
lambda d: os.path.exists(os.path.join(d, '.git'))):
current = os.path.abspath(start_dir)
for _ in range(12):
if _is_fs_root(current):
break
if probe(current):
return current
current = os.path.dirname(current)
return None
def _collect_authoring_root(root, names):
"""Every plugin in the monorepo contributes its names."""
for pkg in glob.glob(os.path.join(root, 'plugins', '*')):
if os.path.isdir(pkg):
_collect_package(pkg, names)
def _declared_dependency_dirs(pkg_dir):
"""Directories of the apm packages pkg_dir's manifest DECLARES.
Reads dependencies.apm and resolves each entry to a directory on disk:
a monorepo-relative `path:` (against the package root and the nearest
ancestor manifest, which is the monorepo root) or an installed
apm_modules/<name>/. Entries that resolve to nothing are skipped — an
undeployed dependency contributes no names rather than an error.
"""
manifest = os.path.join(pkg_dir, 'apm.yml')
if not os.path.isfile(manifest):
return []
try:
data = yaml.safe_load(read_text(manifest)) or {}
except Exception:
return []
if not isinstance(data, dict):
return []
deps = data.get('dependencies')
deps = deps.get('apm') if isinstance(deps, dict) else None
if not isinstance(deps, list):
return []
roots = [pkg_dir]
ancestor = os.path.dirname(os.path.abspath(pkg_dir))
for _ in range(10):
if _is_fs_root(ancestor):
break
if os.path.isfile(os.path.join(ancestor, 'apm.yml')):
roots.append(ancestor)
break
ancestor = os.path.dirname(ancestor)
found = []
for entry in deps:
candidates = []
if isinstance(entry, dict):
rel = entry.get('path')
name = entry.get('name')
if not name and rel:
name = os.path.basename(str(rel).rstrip('/'))
if rel:
candidates.extend(os.path.join(r, str(rel)) for r in roots)
if name:
candidates.append(os.path.join(pkg_dir, 'apm_modules', str(name)))
elif isinstance(entry, str):
name = re.split(r'[#@]', entry)[0].strip().rstrip('/').split('/')[-1]
if name:
candidates.append(os.path.join(pkg_dir, 'apm_modules', name))
candidates.extend(os.path.join(r, 'plugins', name) for r in roots)
for candidate in candidates:
if os.path.isdir(candidate):
found.append(candidate)
return found
def _deployed_roots(start_dir):
""".claude/ and .agents/ trees above start_dir — what a host really sees.
Consulted ONLY when no authoring root exists; see the section header. The
filesystem root is skipped for the same reason _apm_package_root skips it:
a stray /.claude/skills/ must not join every path's universe.
"""
found = []
current = os.path.abspath(start_dir)
for _ in range(10):
if _is_fs_root(current):
break
for name in ('.claude', '.agents'):
base = os.path.join(current, name)
if os.path.isdir(base):
found.append(base)
current = os.path.dirname(current)
return found
def known_targets(start_dir):
"""Every skill/agent name a boundary clause in start_dir may name."""
names = set()
start = os.path.abspath(start_dir)
# Siblings: a cache-installed plugin and a deployed .claude/skills/ tree
# both put peers one level up, with no plugins/ directory above them. The
# grandparent is guarded against the filesystem root exactly like the two
# walk-up loops above — for a start dir of /skills/<x> the grandparent is
# `/`, and collecting there picks up this machine's stray /.apm/skills/.
parent = os.path.dirname(start)
grandparent = os.path.dirname(parent)
if (os.path.basename(parent) in ('skills', 'agents')
and os.path.isdir(parent) and not _is_fs_root(grandparent)):
_collect_package(grandparent, names)
package = _apm_package_root(start)
if package:
_collect_package(package, names)
for dep_dir in _declared_dependency_dirs(package):
_collect_package(dep_dir, names)
root = _authoring_root(start)
if root:
_collect_authoring_root(root, names)
else:
for base in _deployed_roots(start):
_collect_package(base, names)
return names
# --- Extraction -----------------------------------------------------------
# False positives are the design constraint here, not recall. The rules:
# * A BARE target must be hyphenated AND sit in a boundary sentence (one
# carrying "do not"/"instead"/"rather than"/"not for"). Without the second
# condition, pc-run's "run pre-commit hooks" reads as a route to a
# non-existent `pre-commit` skill.
# * A BARE arrow target counts only in ADR-0020's compressed boundary form,
# `Not <thing> -> <skill-name>`. Without that, diagnose's process chain
# "fix -> regression-test" reads as a route to `regression-test`.
# * A backticked hyphenated token counts only inside a boundary sentence.
# Unconditionally, `pre-push` or `commit-msg` in a TRIGGER clause is a hard
# FAIL with no escape hatch. Gating it costs nothing (measured over this
# corpus: 54 targets before and after); DELETING it costs 7 real targets
# across three gitea skills, so it is gated, not removed.
# * SINGLE-WORD targets are deliberately NOT matchable bare — `research`,
# `triage`, `forge`, `prototype` and `tdd` are all real skill names and all
# ordinary English, so a bare-word rule would flag most of the corpus. A
# single-word target must be written `` `forge` `` or /forge to be seen.
# That is a known recall limitation, accepted over the false positives.
# Tool names (Read/Write/Edit) are excluded by the lowercase-only pattern; MCP
# tool names (issue_write) by its rejection of underscores; file names by its
# rejection of dots and slashes.
#
# ATTRIBUTIVE USE. The boundary-sentence gate above does NOT solve the
# `pre-commit` false positive, and the comment that claimed it did was wrong:
# "instead", "rather than", "do not" and "not for" are exactly the words a
# boundary clause uses, so the gate is open precisely where the risk is. All of
# these were hard dangling FAILs with no suppression:
# Use pre-commit hooks instead of ad-hoc scripts.
# Invoke the pull-request template instead of writing one by hand.
# Use conventional-commits formatting rather than free-form messages.
# Composes label-resolution logic instead of duplicating it.
# Do not use for X — run the `pre-push` hooks instead.
# What separates every one of them from a real route is grammar, not marking:
# the hyphenated token is a compound MODIFIER of the noun that follows it
# ("pre-commit hooks", "pull-request template"), where a route target is
# terminal — followed by punctuation, a conjunction, or a boundary word. So a
# target whose next token is an ordinary lowercase noun is CONFIRM-ONLY: it
# still resolves and still counts as a route when the name exists, but it can
# never raise a dangling error on its own.
#
# This is deliberately NOT the simpler "only marked targets may dangle" rule,
# which would have been wrong here: BOTH live true positives in this corpus are
# BARE — research's "(use neuledge-context)" and gitea-issues' "Composes
# gitea-labels-\n milestones", where the `>` fold yields "gitea-labels-
# milestones" and the trailing hyphen is what keeps it terminal. Marking is a
# poor proxy, so the follower token is the signal, and it is applied to
# backticked targets too.
#
# TERMINAL IS NOT ENOUGH — IN-SENTENCE CORROBORATION. The follower test clears
# `pre-push` in the example above only because that example happens to be
# followed by the noun "hooks". Move the same token into terminal position and
# it was a hard FAIL again, with no suppression mechanism anywhere in this gate:
# Do not use for running hooks — run `pre-commit` instead.
# Do not use for the commit message — see `commit-msg`.
# Do not use for type errors — run `type-check` first.
# Instead, use `semantic-release`.
# Do not use for the old flow — use the clean-up instead.
# Do not run end-to-end, run unit-tests.
# Every one of those is grammatically identical to a genuinely broken route:
# "route verb + hyphenated name + terminal" is also exactly how prose cites a
# tool, a hook, a file format or an English compound. Nothing local separates
# them, and the skills most exposed are the ones this contract sends authors
# back to rewrite first — pc-run, pc-author, vale-run, vale-config and the apm-*
# family are all ABOUT hyphenated tools.
#
# So the confidence to BLOCK a commit comes from the sentence, not the token: a
# prose-form target may raise a hard error only when its own sentence names at
# least one OTHER target that RESOLVES. A routing sentence proves itself by
# routing somewhere real; a lone unresolvable name proves nothing. That is not a
# rule fitted to the fixtures — it is the shape of both live true positives,
# which sit beside `write-docs` and `gitea-labels-milestones` respectively, and
# it changes this corpus's verdict by exactly nothing.
#
# An uncorroborated unresolvable target is NOT discarded: every caller reports
# it at its SUGGESTION tier, naming the target. The finding stays visible on
# every run; only the power to block a commit is withdrawn, which is the part
# that had no escape hatch.
#
# EXPLICIT ROUTE NOTATION is exempt from corroboration and always blocks:
# ADR-0020's compressed arrow (`Not <thing> -> <name>`) and Claude Code's
# invocation form (`/<name>`). Neither is ever how English cites a tool — nobody
# writes `-> pre-commit` or `/pre-commit` to mean the hook — so there is no
# ambiguity to resolve, and an author who wants a route checked unconditionally
# has two ways to say so.
#
# NAMESPACE: `plugin:skill` is live in this repo (native user-scope installs
# still resolve `gitea:gitea-prs`), so the patterns admit an optional
# `<plugin>:` prefix and normalize_target() strips it before resolution.
NS = r"(?:[a-z0-9]+(?:-[a-z0-9]+)*:)?"
NAME_ANY = NS + r"[a-z0-9]+(?:-[a-z0-9]+)*"
NAME_HYPH = NS + r"[a-z0-9]+(?:-[a-z0-9]+)+"
ROUTE_VERB = (r"(?:use|uses|using|run|runs|invoke|invokes|invoking|try|see"
r"|that'?s|compose|composes|call|calls"
r"|routes?\s+to|delegates?\s+to|prefers?|switch(?:es)?\s+to"
r"|hands?\s+off\s+to)")
MARKED_TARGET = r"(?:`/?(%s)`|(?<![\w./*-])/(%s)\b)" % (NAME_ANY, NAME_ANY)
ANY_TARGET = r"(?:%s|(%s)\b)" % (MARKED_TARGET, NAME_HYPH)
ROUTE_MARKED = re.compile(r"\b%s\s+(?:the\s+|an?\s+)?%s" % (ROUTE_VERB, MARKED_TARGET), re.I)
ROUTE_ANY = re.compile(r"\b%s\s+(?:the\s+|an?\s+)?%s" % (ROUTE_VERB, ANY_TARGET), re.I)
CONT_MARKED = re.compile(r"\s*(?:or|and|/|,)\s*%s" % MARKED_TARGET)
CONT_ANY = re.compile(r"\s*(?:or|and|/|,)\s*%s" % ANY_TARGET)
ARROW_MARKED = re.compile(r"(?:->|→)\s*%s" % MARKED_TARGET)
ARROW_BOUNDARY = re.compile(r"\bnot\b[^.;]*?(?:->|→)\s*(%s)\b" % NAME_HYPH, re.I)
BACKTICK = re.compile(r"`(%s)`" % NAME_HYPH)
# A boundary clause takes two shapes and BOTH count: the prose markers, and
# ADR-0020's compressed arrow form `Not <thing> -> <name>`.
BOUNDARY_MARKER = re.compile(r"\b(?:do\s+not|instead|rather\s+than|not\s+for)\b", re.I)
BOUNDARY_ARROW = re.compile(r"\bnot\b[^.;]*?(?:->|→)", re.I)
SENTENCE_SPLIT = re.compile(u'(?<=[.!?])\\s+(?=[A-Z"“(])')
# The token that may follow a route target without turning it into a compound
# modifier: punctuation, end of sentence, a conjunction, a boundary word, or a
# head noun that names the artifact itself ("the git-workflow skill"). Anything
# else — `hooks`, `template`, `formatting`, `logic` — is attributive prose.
FOLLOWER = re.compile(r"[`\s]*([a-z][a-z0-9]*)")
FOLLOWER_OK = frozenset("""
and or nor but for to when if unless while after before with from in on at by
of as than then instead rather directly first only always never also even
both either neither so because since per via plus alone here there this that
these those it its they them is are was were be been being has have had will
would can could should must may might does do did
skill skills agent agents plugin plugins command commands
""".split())
def normalize_target(target):
"""Comparison key: namespace stripped, lowercased.
Extraction is case-insensitive (re.I) but the universe is built from
lowercase directory names, so `Git-Commits` at the start of a sentence
resolved to nothing until this normalization existed.
"""
return target.split(':')[-1].lower()
def has_boundary_clause(description):
return bool(BOUNDARY_MARKER.search(description)
or BOUNDARY_ARROW.search(description))
def _first(match):
"""(name, start, end) offsets for the first group that matched."""
for index in range(1, (match.re.groups or 0) + 1):
if match.group(index):
return match.group(index), match.start(index), match.end(index)
return None, None, None
def _terminal(text, pos):
"""True if the token at pos does not make the preceding name a modifier."""
follower = FOLLOWER.match(text, pos)
return not follower or follower.group(1) in FOLLOWER_OK
def _notation(text, start, arrow):
"""True if the name is written in route NOTATION rather than in prose.
Two forms qualify: `/name` (Claude Code's invocation syntax, detected from
the character before the name) and `-> name` (ADR-0020's compressed boundary
form, passed in by the caller that matched the arrow). A backticked name
does NOT qualify — a code span is how a tool, a file and a skill are all
cited, so it carries no intent the follower test hasn't already read.
"""
return arrow or (start > 0 and text[start - 1] == '/')
def _add(out, text, name, start, end, strict=None, arrow=False):
if not name:
return
out.append((name,
_terminal(text, end) if strict is None else strict,
_notation(text, start, arrow)))
def _scan(text, route_re, cont_re, out):
for match in route_re.finditer(text):
name, start, end = _first(match)
if not name:
continue
_add(out, text, name, start, end)
# "use git-history or git-branches instead" / "use gitea-issues /
# gitea-prs" — keep consuming conjoined targets after the first.
pos = match.end()
while True:
cont = cont_re.match(text, pos)
if not cont:
break
_add(out, text, *_first(cont))
pos = cont.end()
def _extract_sentence(sentence):
"""[(name, may_dangle, notation)] for the routing targets in ONE sentence.
Kept separate from _extract() because corroboration is scoped to a single
sentence: a target's evidence is what stands beside it, not what the rest of
the description happens to mention.
"""
out = []
boundary = bool(BOUNDARY_MARKER.search(sentence))
_scan(sentence,
ROUTE_ANY if boundary else ROUTE_MARKED,
CONT_ANY if boundary else CONT_MARKED,
out)
for match in ARROW_MARKED.finditer(sentence):
# `-> name` and `-> /name` are route notation, not prose: nothing
# reads as a compound modifier after an arrow, so no follower test.
_add(out, sentence, *_first(match), strict=True, arrow=True)
for match in ARROW_BOUNDARY.finditer(sentence):
_add(out, sentence, match.group(1), match.start(1), match.end(1),
strict=True, arrow=True)
if boundary:
for match in BACKTICK.finditer(sentence):
_add(out, sentence, match.group(1), match.start(1), match.end(1))
return out
def _extract(description):
"""[(name, may_dangle, notation)] for every routing target."""
out = []
for sentence in SENTENCE_SPLIT.split(description):
out.extend(_extract_sentence(sentence))
return out
def boundary_targets(description):
"""Every routing target, for reporting and for confirming a route."""
return sorted({name for name, _, _ in _extract(description)})
def unresolved_targets(description, known):
"""Targets resolving to nothing, split into (blocking, reported).
`blocking` earns a hard error; `reported` is SUGGESTION tier — named on
every run, never fatal. Three conditions gate the promotion, and all of them
are documented at length in the ATTRIBUTIVE USE and CORROBORATION notes
above:
1. the target must be terminal, not a compound modifier ("pre-commit
hooks" is prose about a tool, not a route),
2. it must be written in route notation (`/name`, `-> name`), OR
3. its own sentence must name another target that DOES resolve.
Everything else is reported and left alone. `known` is the resolved
universe from known_targets(); passing an empty set is not meaningful —
callers check for that first and decline out loud instead.
"""
blocking, reported = set(), set()
for sentence in SENTENCE_SPLIT.split(description):
found = _extract_sentence(sentence)
resolved = {normalize_target(name) for name, _, _ in found
if normalize_target(name) in known}
for name, may_dangle, notation in found:
key = normalize_target(name)
if key in known or not may_dangle:
continue
if notation or (resolved - {key}):
blocking.add(name)
else:
reported.add(name)
return sorted(blocking), sorted(reported - blocking)
# --- Frontmatter ----------------------------------------------------------
# Tolerant on the way in, HARD-FAILING on the way out. A UTF-8 BOM, a leading
# blank line, trailing whitespace after either `---`, or CRLF line endings all
# defeated the old `^---\n(.*?)\n---`, and the miss was SILENT: every ADR-0020
# check was skipped and the file reported green (measured: a 550-character
# description with a 1,000-word body exited 0 behind a BOM). A file that cannot
# be measured must never report green, so every caller of these two ERRORs on a
# miss instead of moving on.
FRONTMATTER_RE = re.compile(
r'^[ \t\r\n]*---[ \t]*\r?\n(.*?)\r?\n[ \t]*---[ \t]*(?:\r?\n|\Z)', re.DOTALL)
def strip_bom(text):
return text[1:] if text.startswith(u'') else text
class FrontmatterError(Exception):
pass
def description_value(fm_text):
"""The description VALUE, with YAML folding resolved.
PyYAML is a HARD requirement, preflighted in bash. The hand-rolled fallback
this replaced diverged from a real parser across the FAIL boundary — one
corpus description measured 270 characters parsed and 412 unparsed, and a
quoted `"description"` key or an explicit `description: null` returned empty
from it, silently skipping the description AND routing checks. A gate that
disagrees with itself depending on which reader ran is worse than no gate.
This is the ONLY reader any of the three scripts may use to decide whether a
description is present. A line regex cannot: `description:` with no value
followed by `model: sonnet` lets `\\s*` cross the newline and captures the
NEXT key, which reads as a non-empty description, skips the "missing or
empty" failure, and then early-returns out of every ADR-0020 gate on the
genuinely empty folded value. That combination exited 0 with zero output on
a BLOCKING pre-push gate.
"""
try:
data = yaml.safe_load(fm_text)
except Exception as exc:
raise FrontmatterError(re.sub(r'\s+', ' ', str(exc)).strip())
if not isinstance(data, dict):
raise FrontmatterError('frontmatter is not a YAML mapping')
value = data.get('description')
if value is None:
return ''
if not isinstance(value, str):
value = str(value)
return re.sub(r'\s+', ' ', value).strip()
# --- Body-shape checks (skills only; agents have no references/ dir) -------
# Deterministic and countable, so they are enforced here. Whether a given
# gotcha is WARRANTED is semantic and stays the auditor's judgment, which is why
# both gotcha checks are SUGGESTION tier. A missing reference file is not a
# style opinion — it is a broken pointer — so that one is ERROR tier.
#
# Both read a FENCE-MASKED copy of the body. Scanning the raw body made a
# ```-fenced example a hard ERROR — and the skills most likely to carry one are
# skill-author and skill-audit, which DOCUMENT the references/ convention — and
# let a `## Gotchas` heading inside a fenced block stand in for the real
# section. Masking preserves every byte offset (content becomes spaces,
# newlines stay), so a span found in the mask slices the original.
GOTCHA_MAX_ENTRIES = 5
GOTCHA_MAX_BODY_FRACTION = 0.25
# The heading has to BE "Gotchas", not merely contain the word: `## Gotcha
# handling` and `## Why gotchas matter` are prose sections, and treating one as
# the Gotchas section measured a span that was never a gotcha list.
GOTCHA_HEADING = re.compile(r'^(#{1,6})[ \t]+(?:[^\n]*?[ \t])?gotchas?[ \t]*:?[ \t]*$',
re.I | re.M)
# Column 0 only. `^[ \t]{0,3}` counted a two-space-indented CHILD bullet as a
# top-level entry, so a five-entry section with sub-bullets reported nine.
GOTCHA_ENTRY = re.compile(r'^(?:[-*+]|\d+[.)])[ \t]+', re.M)
FENCE_OPEN = re.compile(r'^[ \t]{0,3}(`{3,}|~{3,})')
REFERENCE_POINTER = re.compile(
r'(?<![\w./-])(?:\./)?references/([A-Za-z0-9][A-Za-z0-9._/-]*\.md)')
# A pointer named in a sentence that says the file is GONE is a historical
# mention, not a dispatch entry: "the old `references/legacy.md` was removed in
# v2" is prose and must not be a hard ERROR. Narrow on purpose — a live
# dispatch table never describes its own target as removed, so this costs no
# recall.
REFERENCE_PAST = re.compile(
r'\b(?:removed|deleted|renamed|superseded|replaced|obsolete|deprecated'
r'|former|formerly|gone|no longer|used to)\b', re.I)
# A pointer QUALIFIED by another skill's name — "skill-audit's
# references/validation-scripts.md" — names a file that is deliberately NOT in
# this skill's directory. Requiring it on the local disk left NO legal spelling
# for a cross-skill reference at all: the only alternative, a full repo path
# (`plugins/kyberforge/.apm/skills/skill-audit/references/...`), is itself a
# FAIL under skill-audit's own file-structure rubric, because a path that climbs
# out of the skill directory stops resolving once the plugin is cache-installed.
# The possessive form is the sanctioned spelling, and it is skipped here. It is
# not checked further — this function has no way to locate another skill's
# directory, and inventing one would reintroduce exactly the cross-plugin path
# assumption the rubric forbids.
REFERENCE_QUALIFIER = re.compile(u"[A-Za-z0-9][A-Za-z0-9._-]*`?['’]s[ \t]+`?$")
def mask_fenced(text):
"""Body with fenced code blocks blanked out, byte offsets preserved."""
out = []
fence = None
for line in text.splitlines(keepends=True):
stripped = line.rstrip('\r\n')
opener = FENCE_OPEN.match(stripped)
marker = opener.group(1) if opener else None
if fence is None:
if marker:
fence = marker
out.append(' ' * len(stripped) + line[len(stripped):])
continue
out.append(line)
else:
out.append(' ' * len(stripped) + line[len(stripped):])
if (marker and marker[0] == fence[0] and len(marker) >= len(fence)
and not stripped.strip()[len(marker):].strip()):
fence = None
return ''.join(out)
def gotcha_stats(body):
"""(entry count, section word count) for the first Gotchas section, or None.
The section runs to the next heading at the same level or shallower.
Entries are top-level list items; a section written as subheadings instead
of a list counts those. Headings and entries are read from the fence mask;
the word count is taken from the original slice, because fenced lines are
real body words and the fraction is measured against the whole body.
"""
masked = mask_fenced(body)
match = GOTCHA_HEADING.search(masked)
if not match:
return None
level = len(match.group(1))
rest = masked[match.end():]
nxt = re.search(r'^#{1,%d}[ \t]+' % level, rest, re.M)
end = match.end() + (nxt.start() if nxt else len(rest))
section = masked[match.end():end]
entries = len(GOTCHA_ENTRY.findall(section))
if entries == 0 and level < 6:
entries = len(re.findall(r'^#{%d,6}[ \t]+' % (level + 1), section, re.M))
return entries, len(body[match.end():end].split())
def missing_reference_pointers(body, skill_dir):
"""references/<file>.md named in the body but absent from disk."""
masked = mask_fenced(body)
missing = set()
for match in REFERENCE_POINTER.finditer(masked):
start = masked.rfind('\n', 0, match.start()) + 1
end = masked.find('\n', match.end())
if end < 0:
end = len(masked)
if REFERENCE_PAST.search(masked[start:end]):
continue
if REFERENCE_QUALIFIER.search(masked[start:match.start()]):
continue
if not os.path.isfile(os.path.join(skill_dir, 'references', match.group(1))):
missing.add('references/' + match.group(1))
return sorted(missing)
# ===== END ADR-0020 SHARED BOUNDARY RESOLVER =====
def parse_frontmatter(content):
m = FRONTMATTER_RE.match(strip_bom(content))
if not m:
return None, content
return m.group(1), strip_bom(content)[m.end():]
def extract_field(fm, field):
"""The raw text after `field:` ON ITS OWN LINE, or None.
The character class is `[^\\S\\r\\n]`, never `\\s`: under re.MULTILINE a
`\\s*` after the colon crosses the newline, so `description:` with no value
followed by `model: sonnet` captured `model: sonnet` as the description.
That made the value look present, skipped the "missing or empty" failure,
and then every ADR-0020 gate early-returned on the genuinely empty folded
value — a valueless description exited 0 with zero output on a BLOCKING
pre-push gate. This function is now used only for fields with no folding
semantics (name, tools); description goes through description_value(), the
shared resolver's YAML reader, which is the only thing that can see through
`>`, `null`, `''` and a quoted `"description"` key alike.
"""
m = re.search(rf'^{re.escape(field)}:[^\S\r\n]*(.+)', fm, re.MULTILINE)
return m.group(1).strip() if m else None
def get_frontmatter_keys(fm):
keys = set()
for line in fm.splitlines():
m = re.match(r'^([a-zA-Z][a-zA-Z0-9_-]*):', line)
if m:
keys.add(m.group(1))
return keys
def agent_description(fm, local_fname):
"""The folded description VALUE, or None if the frontmatter is not YAML."""
try:
return description_value(fm)
except FrontmatterError as exc:
fail(f"frontmatter is not valid YAML ({exc}) — the ADR-0020 description and "
f"boundary-target gates could not run — {local_fname}")
return None
def check_description_budget(value, local_fname):
"""ADR-0020 description gates — identical for every scope."""
if not value:
return
dlen = len(value)
if dlen > DESC_MAX_CHARS:
fail(f"description is {dlen} chars — exceeds the {DESC_MAX_CHARS}-character "
f"ADR-0020 ceiling. It is preloaded into every session whether or not the "
f"agent is invoked. Keep a trigger clause, at most one capability clause, "
f"and a boundary clause; move capability enumeration, output-format detail, "
f"composition notes and implementation detail to the body — {local_fname}")
elif dlen > DESC_SUGGEST_CHARS:
suggest(f"description is {dlen} chars — over the {DESC_SUGGEST_CHARS}-character "
f"ADR-0020 target (hard fail at {DESC_MAX_CHARS}). The SUGGESTION tier is "
f"what moves the corpus average; the FAIL tier only stops outliers "
f"— {local_fname}")
def check_boundary(value, fpath, local_fname):
"""ADR-0020 boundary clause + resolvable boundary targets.
agent-author's SKILL.md states that an agent's boundary targets must
resolve, but until this ran no script checked it — the contract was
documented and unenforced. The resolution universe is derived from the
AGENT FILE's own location (the authoring root above it, its own apm
package, and that package's declared apm dependencies), never from this
script's path, and — when an authoring root exists — never from a deployed
.claude/ tree, so a fresh clone and a machine that has run `apm install`
return the same verdict.
"""
if not value:
return
# SUGGESTION, not FAIL: detecting the absence is deterministic, but whether
# this particular agent warrants a boundary clause is judgment. All four
# agents in this corpus currently lack one.
if not has_boundary_clause(value):
suggest(f"description has no boundary clause — add the prose form (\"Do not use "
f"for X — use `y` instead\") or ADR-0020's compressed form (\"Not X -> y\") "
f"so the router knows where NOT to send this agent — {local_fname}")
targets = boundary_targets(value)
if not targets:
return
known = known_targets(os.path.dirname(os.path.abspath(fpath)))
if not known:
info(f"boundary-target resolution DID NOT RUN — no skill universe could be "
f"determined for this path (no authoring root above it, no apm package "
f"root, no declared apm dependencies, no deployed .claude/ or .agents/ "
f"tree). Unchecked target(s): {', '.join(targets)} — {local_fname}")
return
# blocking vs reported: a target only earns a FAIL when it is written in
# route notation or its own sentence corroborates it by naming another target
# that resolves. See the shared resolver's CORROBORATION note.
blocking, reported = unresolved_targets(value, known)
for target in blocking:
fail(f"description routes to '{target}', which resolves to no skill or agent "
f"in this monorepo, in this package, or in a package it declares in "
f"apm.yml dependencies.apm — a boundary clause naming a non-existent "
f"target sends the router nowhere — {local_fname}")
for target in reported:
suggest(f"description routes to '{target}', which resolves to no skill or agent "
f"in this monorepo, in this package, or in a package it declares in "
f"apm.yml dependencies.apm — SUGGESTION rather than FAIL because nothing "
f"else in that sentence resolves, so it is equally likely to be a tool, a "
f"file format or an English compound. If it IS a route, write it as "
f"`/{target}` or `-> {target}` and it will be checked properly — "
f"{local_fname}")
def extract_tools_list(fm):
"""Extract tool names from the tools frontmatter field (space or comma separated)."""
val = extract_field(fm, 'tools')
if not val:
return set()
return set(re.split(r'[\s,]+', val.strip()))
def is_copilot_cloud_ide(fpath):
"""True if the file is a cloud/IDE Copilot agent (name is optional for these)."""
return '.github/copilot/agents' in os.path.abspath(fpath).replace(os.sep, '/')
# --- Detect scope ---
# APM_TYPE_RE matches a top-level (column-0) `type:` line in apm.yml whose value is
# exactly one of the four package content types. Group 1 captures an optional
# opening quote; \1 requires the same character (or nothing) to close it, so
# "skill" and '"skill"' both match but a mismatched quote doesn't. The value
# must then be followed by whitespace or end-of-line — not just a non-word
# character — so a malformed value like `prompts-only` is correctly rejected
# instead of false-matching on the `prompts` prefix.
APM_TYPE_RE = re.compile(r"^type:\s*(['\"]?)(instructions|skill|hybrid|prompts)\1(?:\s|$)")
def find_apm_package_root(apm_yml_path):
"""Return True if apm_yml_path has a top-level type: line (i.e. is a package
manifest, not a type:-less marketplace-only apm.yml)."""
# errors='replace', not a hard failure: this only asks whether a `type:`
# line exists, and a stray undecodable byte elsewhere in someone else's
# apm.yml must not abort scope detection.
with open(apm_yml_path, encoding='utf-8', errors='replace') as f:
for line in f:
if APM_TYPE_RE.match(line):
return True
return False
def detect_scope(start_dir):
home = os.path.expanduser('~')
original_start = os.path.abspath(start_dir)
# Agent files conventionally live exactly two path segments below their
# scope root — <root>/.claude/agents, <root>/.github/agents,
# <root>/.copilot/agents, or <root>/.apm/agents (see new-agent.sh's
# CC_DIR/CP_DIR and user-scope dirs). Stripping those two segments
# recovers the same root new-agent.sh would have been invoked with to
# produce this exact file, independent of how far the walk below has to
# travel to find (or fail to find) a marker — mirrors new-agent.sh's
# `root` vs `current` distinction even though validate.sh is handed a
# file's directory, not the scope root itself.
#
# That arithmetic is only trustworthy when the path actually has this
# shape: parent directory literally named "agents", grandparent one of
# the four known scope-dir names. A hand-placed or otherwise
# non-conventional agent file (never produced by new-agent.sh) has no
# such guarantee — blindly trusting two-segments-up there could point at
# an unrelated ancestor. conventional_shape gates every use of
# conventional_root below; when it's false, the walked-to `current`
# directory is used instead, the same fallback this function used before
# conventional_root existed.
scope_dir_name = os.path.basename(os.path.dirname(original_start))
conventional_shape = (
os.path.basename(original_start) == 'agents'
and scope_dir_name in ('.claude', '.github', '.copilot', '.apm')
)
conventional_root = os.path.dirname(os.path.dirname(original_start))
current = original_start
while True:
# The filesystem root is never a candidate, the same guard the shared
# resolver's walk-up loops carry. Without it a file under a marker-less
# temp directory walked all the way to `/` and returned it as the scope
# root, which then reported `counterpart file not found:
# /.claude/agents/<name>.md` — a path that names someone else's machine,
# not the user's project. When the walk runs out, the agent file's own
# directory (or its conventional root) is the honest answer.
if _is_fs_root(current):
return 'project', conventional_root if conventional_shape else original_start
apm_yml = os.path.join(current, 'apm.yml')
if os.path.isfile(apm_yml) and find_apm_package_root(apm_yml):
return 'plugin', current
# $HOME is the user-scope boundary — checked before the .git test
# below, so a dotfiles-managed $HOME (yadm, chezmoi bare-repo, etc.)
# can't shadow user scope by being its own .git repo. 'user' scope
# requires EITHER start_dir to BE $HOME itself (no walk-up — the
# new-agent.sh "root exactly $HOME" case) OR start_dir to sit at the
# conventional two-segments-below-root depth (i.e. $HOME IS that
# root, matching the real ~/.claude/agents or ~/.copilot/agents
# shape). Any other walk-up into $HOME — a marker-less directory
# nested deeper than that convention — resolves to project scope
# instead: a stray directory under $HOME can't be silently
# redirected into the shared global ~/.claude or ~/.copilot agent
# directories.
if current == home:
if original_start == home or (conventional_shape and conventional_root == home):
return 'user', home
return 'project', conventional_root if conventional_shape else current
# .git is a directory in a normal checkout but a file (`gitdir: ...`)
# in a git worktree — exists() covers both. Returns conventional_root,
# not current: new-agent.sh's project-scope file placement always
# uses its `$ROOT` argument directly, never the walked-up `.git`
# location, so a <root> one or more levels below the repo's .git
# (a subdirectory of a larger git-tracked tree — explicitly a
# supported case per new-agent.sh's usage text) must resolve to the
# same root new-agent.sh actually wrote to, not to the .git dir —
# unless the path lacks the conventional shape, in which case that
# arithmetic isn't trustworthy and current is used instead.
if os.path.exists(os.path.join(current, '.git')):
return 'project', conventional_root if conventional_shape else current
parent = os.path.dirname(current)
if parent == current:
return 'project', conventional_root if conventional_shape else current
current = parent
agent_dir = os.path.dirname(agent_file)
scope, scope_root = detect_scope(agent_dir)
# --- Plugin/APM scope: single vendor-neutral file, no counterpart ---
def check_apm_agent_file(fpath, allowlist, stem):
local_fname = os.path.basename(fpath)
try:
content = read_text(fpath)
except EncodingError as exc:
fail(f"file is {exc}. Nothing could be measured, so this is a hard "
f"failure, not a skip — {local_fname}")
return
fm, body = parse_frontmatter(content)
if fm is None:
fail(f"no parseable YAML frontmatter block — expected a `---` line, the fields, "
f"then a closing `---` line (a BOM, leading blank lines, trailing spaces "
f"after either marker and CRLF endings are all tolerated). Nothing could be "
f"measured, so this is a hard failure, not a skip — {local_fname}")
return
# The apm-agent.md template embeds its authoring guidance as HTML
# comments inside the frontmatter block (so they render invisible in a
# Markdown preview but stay visible in the raw file). get_frontmatter_keys
# silently ignores any line that isn't a `key:` match, so a comment left
# behind at ship time would otherwise pass unnoticed — yet apm compile
# copies this frontmatter verbatim to both harnesses, and `<!-- -->` is
# not valid YAML, so yaml.safe_load breaks on both downstream (ADR-0016).
if re.search(r'<!--|-->', fm):
fail(f"frontmatter still contains template HTML comments (<!-- ... -->) "
f"— delete them before shipping — {local_fname}")
# Allowlist: the permitted keys are data, read at load time from
# references/field-inventory.md's `## apm-agent-allowlist` section — do not
# restate them here, or this comment goes stale the next time that line
# changes. apm compile verbatim-copies frontmatter to every target, so a key
# outside the list is unsafe on at least one harness (ADR-0016). Note the
# list admits denylist-shaped restrictions (disallowedTools) but never
# allowlist-shaped ones (tools), whose value shape differs per harness.
fm_keys = get_frontmatter_keys(fm)
for key in sorted(fm_keys):
if key not in allowlist:
fail(f"field '{key}' is not in the vendor-neutral APM agent allowlist "
f"({', '.join(sorted(allowlist))}) — {local_fname}")
# name — required, kebab-case, must match filename stem (file is <name>.agent.md)
name_val = extract_field(fm, 'name')
if not name_val:
fail(f"name field is missing or empty — {local_fname}")
else:
if not re.match(r'^[a-z0-9]+(-[a-z0-9]+)*$', name_val):
fail(f"name '{name_val}' is not kebab-case — {local_fname}")
if name_val != stem:
fail(f"name '{name_val}' does not match filename stem '{stem}' — {local_fname}")
# description — required, non-empty, no placeholder
# Presence is decided on the FOLDED value, never on a line regex. Deciding
# it on extract_field's raw capture is what let `description:` with no value
# pass this gate in total silence: the capture picked up the next key, so
# "missing or empty" never fired, and every ADR-0020 check below then
# early-returned on the empty folded value. Exit 0, zero output, no gate run.
folded = agent_description(fm, local_fname)
if folded is None:
pass # frontmatter is not valid YAML — agent_description already failed
elif not folded:
fail(f"description field is missing or empty — {local_fname}")
else:
if PLACEHOLDER_RE.search(folded):
fail(f"description contains unfilled FILL IN: placeholder — {local_fname}")
check_description_budget(folded, local_fname)
check_boundary(folded, fpath, local_fname)
# body — required, non-empty, no placeholder; same Copilot truncation risk
# applies since this file compiles verbatim into a real Copilot file downstream.
if not body.strip():
fail(f"system prompt body is empty — {local_fname}")
else:
if PLACEHOLDER_RE.search(body):
fail(f"body contains unfilled FILL IN: placeholder — {local_fname}")
if len(body) > COPILOT_BODY_LIMIT:
suggest(f"body exceeds {COPILOT_BODY_LIMIT:,} characters ({len(body):,} chars) — "
f"content beyond the limit is silently truncated by the Copilot runtime "
f"once apm compile emits it downstream — {local_fname}")
if scope == 'plugin':
check_apm_agent_file(agent_file, apm_agent_allowlist, name_stem)
for s in suggestions:
print(f"SUGGESTION {s}")
sys.exit(1 if failed else 0)
# --- Project/user scope: unchanged CC/Copilot pair validation ---
# --- Derive counterpart path ---
if scope == 'project':
if provider == 'claude-code':
counterpart = os.path.join(scope_root, '.github', 'agents', name_stem + '.agent.md')
counterpart_provider = 'copilot'
else:
counterpart = os.path.join(scope_root, '.claude', 'agents', name_stem + '.md')
counterpart_provider = 'claude-code'
else: # user
home = os.path.expanduser('~')
if provider == 'claude-code':
counterpart = os.path.join(home, '.copilot', 'agents', name_stem + '.agent.md')
counterpart_provider = 'copilot'
else:
counterpart = os.path.join(home, '.claude', 'agents', name_stem + '.md')
counterpart_provider = 'claude-code'
def check_file(fpath, file_provider):
local_fname = os.path.basename(fpath)
try:
content = read_text(fpath)
except EncodingError as exc:
fail(f"file is {exc}. Nothing could be measured, so this is a hard "
f"failure, not a skip — {local_fname}")
return
fm, body = parse_frontmatter(content)
if fm is None:
fail(f"no parseable YAML frontmatter block — expected a `---` line, the fields, "
f"then a closing `---` line (a BOM, leading blank lines, trailing spaces "
f"after either marker and CRLF endings are all tolerated). Nothing could be "
f"measured, so this is a hard failure, not a skip — {local_fname}")
return
# name — required for CC and Copilot CLI; optional for Copilot cloud/IDE agents
cloud_ide = (file_provider == 'copilot' and is_copilot_cloud_ide(fpath))
name_val = extract_field(fm, 'name')
if not cloud_ide:
if not name_val:
fail(f"name field is missing or empty — {local_fname}")
else:
if not re.match(r'^[a-z0-9]+(-[a-z0-9]+)*$', name_val):
fail(f"name '{name_val}' is not kebab-case — {local_fname}")
# Stem check applies to Copilot CLI only; CC docs say filename need not match name
if file_provider == 'copilot':
stem = local_fname[:-len('.agent.md')]
if name_val != stem:
fail(f"name '{name_val}' does not match filename stem '{stem}' — {local_fname}")
elif name_val and not re.match(r'^[a-z0-9]+(-[a-z0-9]+)*$', name_val):
# cloud/IDE: name is optional, but if present it must be valid
fail(f"name '{name_val}' is not kebab-case — {local_fname}")
# description
# Presence is decided on the FOLDED value, never on a line regex. Deciding
# it on extract_field's raw capture is what let `description:` with no value
# pass this gate in total silence: the capture picked up the next key, so
# "missing or empty" never fired, and every ADR-0020 check below then
# early-returned on the empty folded value. Exit 0, zero output, no gate run.
folded = agent_description(fm, local_fname)
if folded is None:
pass # frontmatter is not valid YAML — agent_description already failed
elif not folded:
fail(f"description field is missing or empty — {local_fname}")
else:
if PLACEHOLDER_RE.search(folded):
fail(f"description contains unfilled FILL IN: placeholder — {local_fname}")
check_description_budget(folded, local_fname)
check_boundary(folded, fpath, local_fname)
# body
if not body.strip():
fail(f"system prompt body is empty — {local_fname}")
else:
if PLACEHOLDER_RE.search(body):
fail(f"body contains unfilled FILL IN: placeholder — {local_fname}")
# Copilot body length limit
if file_provider == 'copilot' and len(body) > COPILOT_BODY_LIMIT:
suggest(f"body exceeds {COPILOT_BODY_LIMIT:,} characters ({len(body):,} chars) — content beyond the limit is silently truncated by the Copilot runtime — {local_fname}")
# CC-only fields in Copilot file
if file_provider == 'copilot':
fm_keys = get_frontmatter_keys(fm)
for key in sorted(fm_keys):
if key in cc_only_fields:
fail(f"CC-only field '{key}' present in Copilot file — {local_fname}")
# Copilot-only fields in CC file
if file_provider == 'claude-code':
fm_keys = get_frontmatter_keys(fm)
for key in sorted(fm_keys):
if key in copilot_only_fields:
fail(f"Copilot-only field '{key}' present in CC file — {local_fname}")
# Subagent-unavailable tools listed in tools field
tools = extract_tools_list(fm)
unavailable = tools & SUBAGENT_UNAVAILABLE_TOOLS
for tool in sorted(unavailable):
suggest(f"'{tool}' is listed in tools but is never available to subagents — the runtime withholds it regardless — {local_fname}")
# --- Check counterpart exists ---
if not os.path.isfile(counterpart):
fail(f"counterpart file not found: {counterpart}")
sys.exit(1)
# --- Check both files ---
check_file(agent_file, provider)
check_file(counterpart, counterpart_provider)
for s in suggestions:
print(f"SUGGESTION {s}")
sys.exit(1 if failed else 0)
PYTHON