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/lis186/sourceatlas/history-analyzernpx skills add lis186/SourceAtlas --skill history-analyzergit clone --depth 1 https://github.com/lis186/SourceAtlasWrote 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/lis186/sourceatlas/history-analyzer)<a href="https://agentmods.dev/skills/lis186/sourceatlas/history-analyzer"><img src="https://agentmods.dev/badge/skills/lis186/sourceatlas/history-analyzer.svg" alt="Measured on agentmods" 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 | $0.00052 | $0.00344 |
| Opus 5 | $0.00026 | $0.00172 |
| Sonnet 5 | $0.00010 | $0.00069 |
| Haiku 4.5 | $0.00005 | $0.00034 |
Grade A, and why
history-analyzer 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 6d 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.
What it actually says
History Analyzer
When to Use
Trigger this skill when the user:
- Wants to find code hotspots (frequently changed files)
- Needs to identify who knows specific code areas
- Asks about bus factor or knowledge distribution
- Wants to find hidden coupling between files
- Asks "who should I ask about X"
Instructions
- Run
/sourceatlas:historyfor the entire repo, or/sourceatlas:history <path>for specific directory - Optionally specify time range:
/sourceatlas:history . 6for last 6 months - Returns hotspots, coupling analysis, and contributor distribution
Command Formats
- Full repo:
/sourceatlas:history - Specific directory:
/sourceatlas:history src/ - With time range:
/sourceatlas:history . 6(last 6 months)
What User Gets
- Hotspots: Files with most changes (complexity indicators)
- Temporal Coupling: Files that always change together (hidden dependencies)
- Recent Contributors: Who knows what areas
- Bus Factor Risk: Single-contributor files
- Priority actions for refactoring
Example Triggers
- "What are the hotspots in this codebase?"
- "Who knows the payment module best?"
- "What files always change together?"
- "Is there any bus factor risk?"
- "Show me knowledge distribution"
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.
- 6d ago First seen · 44 lines · 52 tokens per session scan A 342dc0be9c00
history-analyzer is a skill published in the GitHub repository lis186/SourceAtlas (48 stars, last pushed 1mo ago), licensed MIT. It adds 52 tokens to every session and 344 once invoked, about $0.0003 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.
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