Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add stellarshenson/claude-code-plugins/plugin install project-managementWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/stellarshenson/claude-code-plugins/acc-crit)<a href="https://agentmods.dev/skills/stellarshenson/claude-code-plugins/acc-crit"><img src="https://agentmods.dev/badge/skills/stellarshenson/claude-code-plugins/acc-crit/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/stellarshenson/claude-code-plugins/acc-crit"><img src="https://agentmods.dev/badge/skills/stellarshenson/claude-code-plugins/acc-crit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00079 | $0.01464 |
| Opus 5.5 | $0.00032 | $0.00586 |
| Sonnet 5.5 | $0.00016 | $0.00293 |
| Haiku 4.5 | $0.00008 | $0.00146 |
Grade A, and why
acc-crit scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 16d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Acceptance Criteria
Read the project-management skill first - it is the single source of truth for the id scheme, the line format, the three states, authoring, relations and the pm-tools command surface. Do NOT duplicate its content here. Its skills/project-management/references/acceptance-criteria.md wins on any conflict about criteria specifically.
Toolchain gate (MANDATORY - run before anything else)
Run this first, every session, before any other work. The upgrade always runs; a version mismatch blocks.
python3 -m pip install --user --upgrade stellars-claude-code-plugins 2>&1 | tail -1
LIB=$(python3 -c "import importlib.metadata as m;print(m.version('stellars-claude-code-plugins'))" 2>/dev/null) || { echo "FATAL: toolkit unavailable"; exit 1; }
PLUG=$(grep -m1 '"version"' "${CLAUDE_PLUGIN_ROOT}/.claude-plugin/plugin.json" 2>/dev/null | cut -d'"' -f4)
OLDER=$(printf '%s\n%s\n' "$LIB" "$PLUG" | sort -V | head -1)
[ -n "$PLUG" ] && [ "$LIB" != "$PLUG" ] && [ "$OLDER" = "$LIB" ] && { echo "STALE: library $LIB older than plugin $PLUG - refusing to run on an outdated CLI; re-run the upgrade"; exit 1; }
echo "toolkit $LIB"
Run the CLI without touching the caller's project. The gate above puts it on PATH, so the bare command name is the whole invocation. uv run instead resolves whatever project the working directory sits in and writes uv.lock and .venv into it, so if you reach for uv pass --no-project (uv run --no-project <cli> ...) - it skips project discovery, leaves the tree untouched and still finds the same PATH binary. --no-sync and --frozen are not substitutes; both still create .venv.
Both branches exit non-zero and neither is advisory: an absent library (FATAL) and a version mismatch (STALE). A mismatch means the CLI is not the one this file was written against, so its documented flags and rules are unverified. Report the line and stop; do not work around it.
What to do
- Read the
project-managementskill, thenskills/project-management/references/acceptance-criteria.md - Ask for the author handle once and reuse it - every write takes
--author @xx, and the handle must be on the roster (pm-tools author FILE --handle @xx --name "Full Name") before it can write - Find the store before creating one -
ls docs/acc-crit*.md; one consolidated doc per project is the default, a scoped file only when the user asks. Never a file per criterion - Lock what you work on, release when you stop - default, unasked:
pm-tools lock FILE --id ID --author @xxwrites itslock:line before your first write to an item,unlockwhen you are done with it; ask before working on an item locked by someone else. The lock never blocks a write, expired locks clear themselves on the next write, andpm-tools unlock FILE --author @xx --id IDclears one at will; taking or clearing an active lock held by another handle is a transfer -lockandunlockprintTRANSFER: ACC-AUTH-1 was locked by @yy until <stamp> - you are taking it over; ask @yyand proceed, and a takeover with no--noterecordstaken over from @yy.report,list,searchandrefsprintN item(s) currently worked on: ACC-AUTH-1 by @xx until <stamp>on stderr before the table - read it before choosing what to pick up - One assertion per item - a criterion needing "and" is two criteria; edge cases are their own items, enumerated across the whole fanout. Write every field laconic - one reading only, nothing past the mechanism, the site, the numbers and the harm, and numbers, ids and paths copied exactly (
SKILL.md, Writing the text) - Rate it yourself, as you file it -
--importance CRITICAL|HIGH|MEDIUM|LOW, read off the assertion against the rubric inskills/project-management/references/acceptance-criteria.md. Never ask the user for the level and never leave it unset;addrefuses one andcheckerrors on one - Write through
pm-tools, never by hand -addassigns the next id and the log line; hand-editing loses both - Record the mechanism once the approach is decided -
pm-tools mechanism FILE --id ID --text "<how it is made true>" --author @xx, oradd --mechanismwhen it is known at filing time. Changing approach OVERRIDES: the new record goes above the old one and the old one stays, so the approach that was abandoned is still readable.--updateonly rewords the newest record - A criterion that replaces an earlier item is a new item - never rewrite the old one to say the new thing.
addthe new criterion, thenpm-tools relate FILE --id NEW --overrides OLD --author @xx:overrides:lands on the new item andoverridden-by:on the old one, in the defects file when the old item is a defect. Reject the old item if it was still open. A link that closes a cycle holds andrelateremoves the older one (SKILL.md, Relations) - Fill the
--testhint and--test-tagsas you add (tags are written upper-case -UNIT,E2E), and never tag a test that does not exist - Closing needs proof -
closerefuses without--evidence: one line saying thetest:line was run and what it showed. Run it first; do not close a criterion on the strength of the code looking right - Gate -
pm-tools check docsafter the session; exit 0 with no errors is the bar
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 16d ago Changed · +1 lines 115d54a33068
- 23d ago Changed · +30 tokens per session a91af2395bc4
- 25d ago Changed df56c95873f8
- 1mo ago Changed 3f2f70200c8d
- 1mo ago First seen · 41 lines · 49 tokens per session scan A 834cea9652e8
acc-crit is a skill published in the GitHub repository stellarshenson/claude-code-plugins (4 stars, last pushed today), licensed MIT. It adds 79 tokens to every session and 1,464 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.
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