codebase-inspection

codebase-inspection is a skill for Claude Code, Codex from aaronnat23/disp8ch. It costs 0 tokens per session (118 once invoked), scanned A, original, MIT.

A focused method for examining a codebase, the files and code that make up a software project, to answer a specific question.

In plain words
What is it for?
Use it to find where behavior is implemented, trace a runtime path, locate a symbol or file, and explain findings in terms of what the software does.
Why use it?
It provides useful architectural context quickly without turning every question into a complete code audit.

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/aaronnat23/disp8ch/codebase-inspection
Any agent
npx skills add aaronnat23/disp8ch --skill codebase-inspection
Clone the repo
git clone --depth 1 https://github.com/aaronnat23/disp8ch

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 codebase-inspection

README.md
[![agentmods](https://agentmods.dev/badge/skills/aaronnat23/disp8ch/codebase-inspection.svg)](https://agentmods.dev/skills/aaronnat23/disp8ch/codebase-inspection)
Your own site
<a href="https://agentmods.dev/skills/aaronnat23/disp8ch/codebase-inspection"><img src="https://agentmods.dev/badge/skills/aaronnat23/disp8ch/codebase-inspection.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 118 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 $0.00000 $0.00118
Opus 5 $0.00000 $0.00059
Sonnet 5 $0.00000 $0.00024
Haiku 4.5 $0.00000 $0.00012

Measured 3d ago against content hash 3401b6be3dec, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codebase-inspection 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 3d 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.

optional-skills/codebase-inspection/SKILL.md · 14 lines

What it actually says

Codebase Inspection

Inspect a codebase quickly enough to answer concrete questions without drifting into a full audit.

Use when

  • A user asks where something lives, how a path works, or what code is responsible for behavior.
  • You need fast architectural context before making a change.

Workflow

  1. Start with the narrowest file or symbol search that can answer the question.
  2. Prefer code paths actually reached in runtime over nearby dead code.
  3. Summarize findings in terms of behavior, not just filenames.
  4. Call out uncertainty when the evidence is indirect.
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. 3d ago First seen · 14 lines · 0 tokens per session scan A 3401b6be3dec

Subscribe to this mod's changes

codebase-inspection is a skill published in the GitHub repository aaronnat23/disp8ch (98 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 118 tokens. 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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