search_knowledge

search_knowledge is a skill for Claude Code, Codex from MauricioPerera/llms-txt-skills. It costs 28 tokens per session (138 once invoked), scanned A, original, MIT.

A text-search tool for finding concepts in a published knowledge collection. It uses BM25, a method that ranks results by matching words in the text.

In plain words
What is it for?
Finding which concept in the collection answers a question, then using that result to fetch the relevant information.
Why use it?
It helps locate the relevant knowledge before retrieving it, so answers do not depend on guessing or manually scanning the collection.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Finding which concept in the collection answers a question, then using that result to fetch the relevant information.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mauricioperera/llms-txt-skills/search_knowledge
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 MauricioPerera/llms-txt-skills --skill search_knowledge
Clone the repo
git clone --depth 1 https://github.com/MauricioPerera/llms-txt-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 search_knowledge

README.md
[![agentmods](https://agentmods.dev/badge/skills/mauricioperera/llms-txt-skills/search_knowledge/github.svg)](https://agentmods.dev/skills/mauricioperera/llms-txt-skills/search_knowledge)
Your own site
<a href="https://agentmods.dev/skills/mauricioperera/llms-txt-skills/search_knowledge"><img src="https://agentmods.dev/badge/skills/mauricioperera/llms-txt-skills/search_knowledge/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 search_knowledge

Your own site · 80×15
<a href="https://agentmods.dev/skills/mauricioperera/llms-txt-skills/search_knowledge"><img src="https://agentmods.dev/badge/skills/mauricioperera/llms-txt-skills/search_knowledge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 138 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 $0.00028 $0.00138
Opus 5 $0.00014 $0.00069
Sonnet 5 $0.00006 $0.00028
Haiku 4.5 $0.00003 $0.00014

Measured 12d ago against content hash 652e3bc0f8ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

search_knowledge 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 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (tool.js), 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.

docs/skills/search_knowledge/SKILL.md · 14 lines

What it actually says

search_knowledge

BM25 search over this origin's published knowledge bundle. Use it to find which concept answers a question before fetching it. Generated by llms-skills memory from this origin's OKF knowledge bundle; backed by a hash-verified BM25 snapshot (origin memory, Executable Skills v0.5 §2.4). Call the tool rather than improvising: the runtime executes it verbatim in a sandbox.

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. 12d ago First seen · 14 lines · 28 tokens per session scan A 652e3bc0f8ed

Subscribe to this mod's changes

search_knowledge is a skill published in the GitHub repository MauricioPerera/llms-txt-skills (2 stars, last pushed 13d ago), licensed MIT. It adds 28 tokens to every session and 138 once invoked, about $0.0001 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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