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code-index

code-index is a skill for Claude Code, Codex from microbians/AI.SKILLS. It costs 66 tokens per session (1,246 once invoked), scanned A, original, no licence file.

A fast code-search system that builds a local index of symbols such as classes, functions, and methods, plus their references. It uses SQLite and universal-ctags to locate code without reading an entire large project.

In plain words
What is it for?
Use it before editing or delegating work to locate where a symbol is defined and where it is used.
Why use it?
It helps find the relevant definitions and usages quickly in a large codebase, reducing unnecessary file scanning.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 5repo changed 6d ago A scan 66 tokens no licence

Good fit Use it before editing or delegating work to locate where a symbol is defined and where it is used.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/microbians/ai.skills/skill
View source ↗ microbians/AI.SKILLS
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.

Any agent
npx skills add microbians/AI.SKILLS --skill skill
Clone the repo
git clone --depth 1 https://github.com/microbians/AI.SKILLS

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 code-index

README.md
[![agentmods](https://agentmods.dev/badge/skills/microbians/ai.skills/skill/github.svg)](https://agentmods.dev/skills/microbians/ai.skills/skill)
Your own site
<a href="https://agentmods.dev/skills/microbians/ai.skills/skill"><img src="https://agentmods.dev/badge/skills/microbians/ai.skills/skill/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 code-index

Your own site · 80×15
<a href="https://agentmods.dev/skills/microbians/ai.skills/skill"><img src="https://agentmods.dev/badge/skills/microbians/ai.skills/skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,246 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 unknown 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 $0.00066 $0.01246
Opus 5.5 $0.00026 $0.00498
Sonnet 5.5 $0.00013 $0.00249
Haiku 4.5 $0.00007 $0.00125

Measured 6d ago against content hash bc15695dfde1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-index 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.

plugins/code-index/skill/SKILL.md · 109 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 Changed bc15695dfde1
  2. 2mo ago First seen · 109 lines · 66 tokens per session scan A 6afb4f207832

Subscribe to this mod's changes

code-index is a skill published in the GitHub repository microbians/AI.SKILLS (5 stars, last pushed yesterday), with no licence file. It adds 66 tokens to every session and 1,246 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 2026-08-31.

Debugging
Related

code-index compared with skills from other repositories

code-index next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
code-indexmicrobians/AI.SKILLSSkill5yesterdaynoneA66Claude Code, Codex
systematic-debuggingopen-metadata/OpenMetadataSkill16ktodayApache-2.0A37Claude Code
log-error-digestzebbern/claude-code-guideSkill4.7kyesterdayMITA71Claude Code, Codex
cwv-optimizeradobe/skillsSkill320todayApache-2.0A112Claude Code
ci-fixersipyourdrink-ltd/bernsteinSkill1.2kyesterdayApache-2.0A15Claude Code, Codex
incident-response-incident-responsermyndharis/antigravity-skillsSkill2.0k24d agoMITA36Claude Code
diagnosing-missing-recordingsPostHog/posthogSkill41ktodaynoneA76Claude Code, Codex