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.
npx agentmods add skills/yaklang/hack-skills/insecure-source-code-managementnpx skills add yaklang/hack-skills --skill insecure-source-code-managementgit clone --depth 1 https://github.com/yaklang/hack-skillsWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00047 | $0.01441 |
| Opus 5 | $0.00023 | $0.00720 |
| Sonnet 5 | $0.00009 | $0.00288 |
| Haiku 4.5 | $0.00005 | $0.00144 |
Grade A, and why
insecure-source-code-management 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- insecure-source-code-management — 100% identical, 0 lines differ
- insecure-source-code-management — 97% identical, 4 lines differ
How it starts
The opening of the file, as written. The whole thing — 162 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SKILL: Insecure Source Code Management
AI LOAD INSTRUCTION: This skill covers detection and recovery of exposed version-control metadata, common backup artifacts, and related misconfigurations. Use only in authorized assessments. Treat recovered credentials and URLs as sensitive; do not exfiltrate real data beyond scope. For broad discovery workflow, cross-load recon-for-sec and recon-and-methodology when those skills exist in the workspace.
0. QUICK START
High-value paths to probe first (GET or HEAD, respect rate limits):
/.git/HEAD
/.git/config
/.svn/entries
/.svn/wc.db
/.hg/requires
/.bzr/README
/.DS_Store
/.env
Routing note: quickly probe these paths first; for full recon workflow, load methodology from recon-for-sec and recon-and-methodology before deeper testing.
1. GIT EXPOSURE
Detection
/.git/HEAD— valid repo often returns plain text like:
ref: refs/heads/main
/.git/config— may exposeremote.origin.url, user identity, or embedded credentials./.git/index,/.git/objects/— partial object store access enables reconstruction with the right tools.
403 vs 404
404— path likely absent or fully blocked at the edge.403on/.git/— directory may exist but listing is denied; still try direct file URLs:
/.git/HEAD
/.git/config
/.git/logs/HEAD
/.git/refs/heads/main
A 403 on the directory plus 200 on HEAD strongly indicates exposure.
Recovery tools (open source)
arthaud/git-dumper— dumps reachable.gittree when individual files are fetchable.internetwache/GitTools— Dumper, Extractor, Finder modules for partial/corrupt dumps.WangYihang/GitHacker— alternative recovery when standard dumpers miss edge cases.
Key files to prioritize
| Path | Why it matters |
|---|---|
.git/config |
Remotes, credentials, hooks paths |
.git/logs/HEAD |
Commit history, reflog-style leakage |
.git/refs/heads/* |
Branch tips, commit SHAs |
.git/packed-refs |
Packed branch/tag refs |
.git/objects/** |
Object blobs for reconstruction |
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.
- 3d ago First seen · 162 lines · 47 tokens per session scan A 7e033f796ec8
insecure-source-code-management is a skill published in the GitHub repository yaklang/hack-skills (2,004 stars, last pushed 2mo ago), licensed MIT. It adds 47 tokens to every session and 1,441 once invoked, about $0.0002 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 2026-08-30.
Other skills, from other repositories
systematic-debugging
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
brainstorming
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
auto-perf-optimize
Run agent-driven VS Code performance or memory investigations. Use when asked to launch Code OSS, automate a VS Code scenario, run the Chat memory smoke runner, capture renderer heap snapshots, take workflow screenshots, compare run summaries, or drive a repeatable scenario before heap-snapshot analysis.
chat-perf
Run chat perf benchmarks and memory leak checks against the local dev build or any published VS Code version. Use when investigating chat rendering regressions, validating perf-sensitive changes to chat UI, or checking for memory leaks in the chat response pipeline.
chat-pet-sprite-creation
Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.
cpu-profile-analysis
Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…