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oss-forensics

oss-forensics is a skill for Claude Code, Codex from raphaelmansuy/edgecrab. It costs 64 tokens per session (4,683 once invoked), scanned B, original, no licence file.

A toolkit for investigating the history and security of open-source GitHub repositories. It examines repository evidence, including removed commits and signs of forced history changes.

In plain words
What is it for?
Use it to recover deleted commits, detect force-pushes, extract indicators of compromise, compare evidence from multiple sources, test explanations, and write forensic reports.
Why use it?
It helps reconstruct what happened when repository history or other evidence is missing, changed, or disputed.

Skill for Claude CodeCodex

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

not rated 93repo 3mo ago B scan 64 tokens no licence

Good fit Use it to recover deleted commits, detect force-pushes, extract indicators of compromise, compare evidence from multiple sources, test explanations, and write forensic reports.

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

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 oss-forensics

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/raphaelmansuy/edgecrab/oss-forensics"><img src="https://agentmods.dev/badge/skills/raphaelmansuy/edgecrab/oss-forensics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,683 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 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 $0.00064 $0.04683
Opus 5.5 $0.00026 $0.01873
Sonnet 5.5 $0.00013 $0.00937
Haiku 4.5 $0.00006 $0.00468

Measured 2mo ago against content hash 71124a8bebba, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

oss-forensics scanned grade B with 2 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/evidence-store.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.

Unrestricted tool accessmediumExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

**ROLE BOUNDARY**: You enrich EXISTING IOCs from Phase 1 using passive public sources ONLY. Do not execute any code from the target repository.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s "https://api.github.com/repos/OWNER/REPO/commits?per_page=100" > api_commits.json
optional-skills/security/oss-forensics/SKILL.md · 423 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

Files

What ships with it

7 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 · 423 lines · 64 tokens per session scan B 71124a8bebba

Subscribe to this mod's changes

oss-forensics is a skill published in the GitHub repository raphaelmansuy/edgecrab (93 stars, last pushed 3mo ago), with no licence file. It adds 64 tokens to every session and 4,683 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it B with 2 findings (unrestricted tool access, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Git and workflowLLMSecurityagentic-aiai-agentautonomous-agentclimcp
Related

oss-forensics compared with skills from other repositories

oss-forensics next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
oss-forensicsraphaelmansuy/edgecrabSkill933mo agononeB64Claude Code, Codex
synthetic-release-notestheinfosecguy/razinSkill1613d agoMITA15Claude Code, Codex
apply-patchagentscope-ai/agentscope-javaSkill6.3kyesterdayApache-2.0A38Claude Code, Codex
git-checkpointagentscope-ai/agentscope-javaSkill6.3kyesterdayApache-2.0A39Claude Code, Codex
github-wakepchalasani/claude-code-toolsSkill2.0kyesterdayMITA47Claude Code, Codex
building-agentsericrisco/rsc-harnessSkill5032d agoMITA85Claude Code, Codex
agent-evalericrisco/rsc-harnessSkill5032d agoMITA79Claude Code, Codex