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sleuth

sleuth is a skill for Claude Code, Codex from povvo/sleuth. It costs 101 tokens per session (4,310 once invoked), scanned A, original, MIT.

An investigation toolkit and workflow for structured research, open-source intelligence, due diligence, and intelligence analysis. Open-source intelligence means examining publicly available information.

In plain words
What is it for?
Use it to trace ownership, map organizations and people, check sanctions, verify digital evidence, resolve identities, and build timelines.
Why use it?
It helps keep complex investigations organized across entities, relationships, timelines, evidence, locations, and saved progress.

Skill for Claude CodeCodex

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

not rated 21repo 6mo ago A scan 101 tokens original MIT

Good fit Use it to trace ownership, map organizations and people, check sanctions, verify digital evidence, resolve identities, and build timelines.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/povvo/sleuth/claude-sleuth
View source ↗ povvo/sleuth
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 povvo/sleuth --skill claude-sleuth
Clone the repo
git clone --depth 1 https://github.com/povvo/sleuth

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 sleuth

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/povvo/sleuth/claude-sleuth"><img src="https://agentmods.dev/badge/skills/povvo/sleuth/claude-sleuth.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 101 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,310 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 $0.00101 $0.04310
Opus 5.5 $0.00040 $0.01724
Sonnet 5.5 $0.00020 $0.00862
Haiku 4.5 $0.00010 $0.00431

Measured 2mo ago against content hash b13db30f71e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sleuth 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 2mo 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.

skills/claude-sleuth/SKILL.md · 163 lines

How it starts

The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.

This repo contains a scripts/ directory with 15+ purpose-built investigation tools. They exist to be run. Consult references/reference-index.json for phase-to-template mappings, references/guidance.md for the full 15-step narrative, references/tooling.md for the 150+ tool inventory. Every script in scripts/ supports --help. 

**Standard cycle: `next` → execute → `done`.** Constraint 9 governs execution — no exceptions.

**Session sync protocol:** At session start, call `CSDb:list_investigations` to identify the active case, then `CSDb:load_progress` to restore task runner state and `CSDb:load_notebook` to restore the Investigation Notebook. After each `done` (task completion), call `CSDb:save_progress` to persist the updated state. At phase transitions and whenever a finding materially shifts the picture, call `CSDb:save_notebook` with the current notebook content. Entities, relationships, timeline events, evidence, grades, and locations are written to CSDb as they are produced — do not batch these to session end.

Read the full file on GitHub · 163 lines

Files

What ships with it

60 files 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. 2mo ago First seen · 163 lines · 101 tokens per session scan A b13db30f71e9

Subscribe to this mod's changes

sleuth is a skill published in the GitHub repository povvo/sleuth (21 stars, last pushed 6mo ago), licensed MIT. It adds 101 tokens to every session and 4,310 once invoked, about $0.0004 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.

Claude CodeResearchai-toolsclaudeclaude-aiclaude-desktopclaude-skills
Related

sleuth compared with skills from other repositories

sleuth next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
sleuthpovvo/sleuthSkill216mo agoMITA101Claude Code, Codex
skill-builderyusufkaraaslan/Skill_SeekersSkill15k1mo agoMITA38Claude Code
skill-builderyusufkaraaslan/Skill_SeekersSkill15k1mo agoMITA38Claude Code, Codex
review-proof-sorterlhitches/claude-seo-skillsSkill228d agoMITA199Claude Code, Codex
stuckmshadmanrahman/claude-for-designersSkill421mo agoMITA161Claude Code
wrap-upmshadmanrahman/claude-for-designersSkill421mo agoMITA104Claude Code
pick-upmshadmanrahman/claude-for-designersSkill421mo agoMITA93Claude Code