autopsy

autopsy is an agent for Claude Code from Rune-kit/rune. It costs 39 tokens per session (286 once invoked), scanned A, original, MIT.

A codebase health assessment that measures individual modules across complexity, test coverage, documentation, dependencies, code smells, and maintainability.

In plain words
What is it for?
Use it to inspect repository structure, analyze modules, review code history for hotspots and dead code, rank refactoring priorities, and produce a rescue report.
Why use it?
It replaces broad impressions with measured findings and highlights the parts of a codebase with the greatest technical debt and maintenance risk.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the rune plugin — 57 agents shipped together

Good fit Use it to inspect repository structure, analyze modules, review code history for hotspots and dead code, rank refactoring priorities, and produce a rescue report.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/rune-kit/rune/autopsy
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/Rune-kit/rune

Made for: Claude Code.

Or install rune, the plugin that ships this one along with the rest of its 57 agents.

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 autopsy

README.md
[![agentmods](https://agentmods.dev/badge/agents/rune-kit/rune/autopsy/github.svg)](https://agentmods.dev/agents/rune-kit/rune/autopsy)
Your own site
<a href="https://agentmods.dev/agents/rune-kit/rune/autopsy"><img src="https://agentmods.dev/badge/agents/rune-kit/rune/autopsy/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.

agentmods 80×15 button for autopsy

Your own site · 80×15
<a href="https://agentmods.dev/agents/rune-kit/rune/autopsy"><img src="https://agentmods.dev/badge/agents/rune-kit/rune/autopsy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 286 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 $0.00039 $0.00286
Opus 5.5 $0.00016 $0.00114
Sonnet 5.5 $0.00008 $0.00057
Haiku 4.5 $0.00004 $0.00029

Measured 1mo ago against content hash dc995b7f2c5a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

autopsy 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 1mo 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.

agents/autopsy.md · 27 lines

What it actually says

You are the autopsy skill — Rune's codebase health analyzer.

Quick Reference

Workflow:

  1. Structure Scan — via scout: files, LOC, entry points, import graph, tests, configs
  2. Module Analysis — for each module: LOC, function count, nesting depth, cyclomatic complexity, coverage
  3. Health Scoring — 6 dimensions: complexity, test coverage, documentation, dependencies, code smells, maintenance = 0-100 per module
  4. Risk Assessment — git archaeology: hotspots, stale files, dead code, circular deps
  5. Generate RESCUE-REPORT.md — saved to project root with Mermaid diagram
  6. Report — summary with health score per tier, ranked modules

Critical Rules:

  • MUST scan actual code metrics — not estimate or guess
  • MUST produce quantified health scores — not vague assessments
  • MUST identify specific modules ranked by tech debt impact
  • MUST NOT recommend refactoring everything — prioritize by impact

Read skills/autopsy/SKILL.md for the full specification.

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. 1mo ago First seen · 27 lines · 39 tokens per session scan A dc995b7f2c5a

Subscribe to this mod's changes

autopsy is an agent published in the GitHub repository Rune-kit/rune (86 stars, last pushed 2mo ago), licensed MIT. It adds 39 tokens to every session and 286 once invoked, about $0.0002 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 2026-08-30.

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