Borrowing it
Nothing to install: this file belongs to lac5q/beastmode. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/lac5q/beastmode/main/.claude/skills/gitnexus-impact-analysis/SKILL.mdgit clone --depth 1 https://github.com/lac5q/beastmodeWrote 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.
[](https://agentmods.dev/skills/lac5q/beastmode/gitnexus-impact-analysis)<a href="https://agentmods.dev/skills/lac5q/beastmode/gitnexus-impact-analysis"><img src="https://agentmods.dev/badge/skills/lac5q/beastmode/gitnexus-impact-analysis/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.
<a href="https://agentmods.dev/skills/lac5q/beastmode/gitnexus-impact-analysis"><img src="https://agentmods.dev/badge/skills/lac5q/beastmode/gitnexus-impact-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00050 | $0.01777 |
| Opus 5.5 | $0.00020 | $0.00711 |
| Sonnet 5.5 | $0.00010 | $0.00355 |
| Haiku 4.5 | $0.00005 | $0.00178 |
Grade A, and why
gitnexus-impact-analysis 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 1mo 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.
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.
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.
- 1mo ago Changed · +70 lines 5e09acc141b1
- 1mo ago First seen · 98 lines · 50 tokens per session scan A 09e529505da1
gitnexus-impact-analysis is a skill published in the GitHub repository lac5q/beastmode (22 stars, last pushed 1mo ago), with no licence file. It adds 50 tokens to every session and 1,777 once invoked, about $0.0002 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.
Other skills, from other repositories
agency-codebase-archaeologist
Multi-session, multi-tool drift detection specialist who audits codebases touched by several AI coding tools (Claude, Cursor, Copilot, Windsurf, etc.) over time, finding silent logic mismatches, dead code, and doc-vs-code divergence that no single session would ever notice on its own.
agency-minimal-change-engineer
Engineering specialist focused on minimum-viable diffs — fixes only what was asked, refuses scope creep, prefers three similar lines over a premature abstraction. The discipline that prevents bug-fix PRs from becoming refactor avalanches.
aafb9b1b091b4dc00c7d838fa91f75c507e51c36045f31bccfc864a8532819f8
Use exact retained evidence.
code-review
A code-review procedure for examining supplied code or a change diff for evidence-based bugs, compatibility problems, and data risks.
latent-premises
Use when reviewing a diff or module for hidden assumptions - things the code takes for granted that nothing guarantees - or when asked "what could break this later", "what does this assume", or to harden code that works today. Complements bug-hunt: bug-hunt finds defects with triggers today; this finds the ones…
code-reviewer
A code-reviewing role that checks code for bugs, security weaknesses, readability problems, design issues, and performance concerns.