dead-code-audit

dead-code-audit is a skill for Claude Code, Codex from anortham/julie. It costs 37 tokens per session (1,357 once invoked), scanned A, original, MIT.

An audit workflow for finding code that may no longer be used in Julie, a code-indexing project. It checks references before cleanup.

In plain words
What is it for?
It supports audits of dead code, stale helpers, test-only paths, unused public APIs, graph gaps, and cleanup candidates before changes are made.
Why use it?
It helps distinguish genuinely unused code from false positives caused by dynamic calls, command-line entry points, generated files, or tests.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/anortham/julie/dead-code-audit
Any agent
npx skills add anortham/julie --skill dead-code-audit
Clone the repo
git clone --depth 1 https://github.com/anortham/julie

Made for: Claude Code, Codex.

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 dead-code-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/anortham/julie/dead-code-audit.svg)](https://agentmods.dev/skills/anortham/julie/dead-code-audit)
Your own site
<a href="https://agentmods.dev/skills/anortham/julie/dead-code-audit"><img src="https://agentmods.dev/badge/skills/anortham/julie/dead-code-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,357 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00037 $0.01357
Opus 5 $0.00018 $0.00678
Sonnet 5 $0.00007 $0.00271
Haiku 4.5 $0.00004 $0.00136

Measured 5d ago against content hash 2d61b828a85c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dead-code-audit 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/dead_code_inventory.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.agents/skills/dead-code-audit/SKILL.md · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Dead Code Audit

Use Julie's index as evidence, then verify with Julie tools before any edit. A zero-reference row is a lead, not a verdict.

Scope

This skill is for Julie development:

  • dead code and stale helper audits
  • code referenced only by tests
  • public APIs with no product callers
  • graph linkage gaps that look like dead code
  • cleanup campaigns before deletion, privatization, or module splitting

Do not use this as a blind deletion workflow. Dynamic dispatch, trait impls, CLI entry points, MCP handlers, generated fixtures, parser registries, macro usage, and cross-language extraction paths all create false positives.

Inventory

  1. Get the current workspace id:
manage_workspace(operation="stats")
  1. Run the bundled inventory script from the repo root:
python3 .Codex/skills/dead-code-audit/scripts/dead_code_inventory.py --workspace-id <workspace_id> --limit 40

Use --db <path> if the workspace's index is not under the default ~/.julie/indexes/<workspace_id>/ location (e.g. a standalone .julie/ project index). Use --json when another script will postprocess the result. The default report excludes fixtures, docs, examples, and data/config languages. Add --include-fixtures or --include-data-languages when that scope matters.

  1. Also run early-warning signals:
./target/debug/julie-server signals --workspace . --fresh --limit 40

Build debug first if needed. Keep this read-only.

Triage Labels

Assign one label to each candidate:

Label Meaning
delete No product reachability, no external dispatch role, no useful test-only value
make-private Used in product code, but exported wider than needed
merge-into-caller Single product caller and no independent concept
test-fossil Product symbol exists only to satisfy tests
graph-gap Julie failed to link real product usage
keep Valid entry point, trait hook, registry item, dynamic target, or public surface
needs-design-review Risky or ambiguous enough to discuss before edits

Read the full file on GitHub · 153 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 153 lines · 37 tokens per session scan A 2d61b828a85c

Subscribe to this mod's changes

dead-code-audit is a skill published in the GitHub repository anortham/julie (6 stars, last pushed 15d ago), licensed MIT. It adds 37 tokens to every session and 1,357 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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