Acu: Skill for Claude Code

.claude/skills/acu-pulse/SKILL.md

acu-pulse is a skill for Claude Code from Acquiredl/Acu. It costs 40 tokens per session (802 once invoked), scanned A, original, MIT.

A read-only metrics report for Acu pipelines. It calculates measures such as how often work completes without human intervention, gate pass rates, cycle times, and recurring problem alerts from logs and status files.

In plain words
What is it for?
Use it to review pipeline performance, find failing or slow gates, classify work units by audit history, and display alerts or machine-readable metrics.
Why use it?
It makes patterns across completed work visible without manually calculating results from individual pipeline records.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

This is Acquiredl/Acu's own configuration. It tells Claude Code how to work on Acu itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Acu configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Acquiredl/Acu. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Acquiredl/Acu/master/.claude/skills/acu-pulse/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Acquiredl/Acu

Made for: Claude Code.

Wrote 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.

agentmods badge for acu-pulse

README.md
[![agentmods](https://agentmods.dev/badge/skills/acquiredl/acu/acu-pulse.svg)](https://agentmods.dev/skills/acquiredl/acu/acu-pulse)
Your own site
<a href="https://agentmods.dev/skills/acquiredl/acu/acu-pulse"><img src="https://agentmods.dev/badge/skills/acquiredl/acu/acu-pulse.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 802 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.00802
Opus 5 $0.00020 $0.00401
Sonnet 5 $0.00008 $0.00160
Haiku 4.5 $0.00004 $0.00080

Measured 6d ago against content hash 5a08d1ca3221, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

acu-pulse 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 6d 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.

.claude/skills/acu-pulse/SKILL.md · 102 lines

How it starts

The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/acu-pulse — Pipeline Health Metrics

Read-only diagnostic skill. Computes autonomy rate, gate pass rates, cycle times, and pattern alerts from audit logs across all pipelines.

Protocol

Step 1: RUN — Execute pulse.mjs

Run the metrics script from the repository root:

node pulse.mjs

If the user asks for machine-readable output, use node pulse.mjs --json instead. If the user only wants alerts, use node pulse.mjs --alerts.

Step 2: INTERPRET — Analyze the output

The script produces five sections. Interpret each:

Unit Classifications

Each work unit is classified by its audit history:

Class Meaning
CLEAN Zero structural failures
NEAR-CLEAN One structural failure (resolved)
TROUBLED Two or more structural failures
BLOCKED Currently stuck — last gate result is FAIL
Autonomy Rate

Percentage of completed units that ran clean with zero human intervention. Only completed units count. Bug-induced units are excluded (they pollute the signal).

Gate Pass Rates

Cross-pipeline pass/fail ratio per gate type. Low-rate gates are bottlenecks — they may indicate unclear specs, overly strict checks, or systemic quality issues at that stage transition.

Alerts
  • [STALL] — No gate transition in 14+ days. Unit may be abandoned or blocked.
Cycle Times

Wall-clock duration per stage from status.yaml timestamps. Useful for identifying stages that take disproportionately long, but note these include idle time (not active work time).

Gate Analytics

Deep metrics on gate performance:

  • First-pass rate — percentage of units that pass each gate on their first attempt. Lower rates indicate unclear specs or overly strict exit criteria.
  • Retry times — average wall-clock time between a gate failure and the next attempt.
  • Top failure causes — most common structural check failures across pipelines.
Pipeline Metrics

Per-pipeline health indicators:

  • Completion rate — units reaching final stage vs total created. Low rates indicate systemic stalls.
  • Stage velocity — average/min/max time per stage type across all pipelines. Identifies slow stages.
  • Stall detection — units with no gate transition in 14+ days. Surfaced as [STALL] alerts.

Read the full file on GitHub · 102 lines

Changes

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.

  1. 6d ago First seen · 102 lines · 40 tokens per session scan A 5a08d1ca3221

Subscribe to this mod's changes

acu-pulse is a skill published in the GitHub repository Acquiredl/Acu (2 stars, last pushed 27d ago), licensed MIT. It adds 40 tokens to every session and 802 once invoked, about $0.0002 per session on Opus 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 2026-08-31.

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