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 skills add dgilford/ai-science-toolkit --skill pathfindergit clone --depth 1 https://github.com/dgilford/ai-science-toolkitWrote 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/dgilford/ai-science-toolkit/pathfinder)<a href="https://agentmods.dev/skills/dgilford/ai-science-toolkit/pathfinder"><img src="https://agentmods.dev/badge/skills/dgilford/ai-science-toolkit/pathfinder.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00059 | $0.01603 |
| Opus 5 | $0.00030 | $0.00801 |
| Sonnet 5 | $0.00012 | $0.00321 |
| Haiku 4.5 | $0.00006 | $0.00160 |
Grade A, and why
pathfinder 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill & Agent Router
Type /pathfinder when you need to know which skill or subagent to reach for.
Nothing here fires automatically; this is a navigation aid only.
Session lifecycle
Start of session → /pickup
↓ (do work)
End of session → /handoff writes .ai/HANDOFF.md, then calls /evolve-claude-md
Standalone update → /evolve-claude-md promote session knowledge to CLAUDE.md only
Skills — user-invoked (type the slash command explicitly)
| Skill | Command | Reach for it when… |
|---|---|---|
| repo-init | /repo-init [--package] |
Starting a new repo (or retrofitting an old one): scaffolds the standard structure — research mode by default, --package for a distributable library. Idempotent |
| pickup | /pickup |
Starting a new session; reconstructs context from .ai/HANDOFF.md. Named pickup, not resume, so it doesn't shadow Claude Code's built-in /resume session picker |
| handoff | /handoff |
Ending a session or switching agents; calls evolve-claude-md internally |
| evolve-claude-md | /evolve-claude-md |
Standalone CLAUDE.md update without a full handoff |
| grill-me | /grill-me |
Stress-testing a plan or design before implementing; thin launcher for the grilling core |
| slack-message | /slack-message |
Drafting an internal Slack update grounded in git context |
| create-alert | /create-alert [--spec-only] |
Getting pinged on Slack when something changes/happens: grills a "tell me when X" ask into a testable trigger, dry-runs it, and (on sign-off) creates a scheduled cloud routine. --spec-only stops at the spec |
| tab-setup | /tab-setup [all] |
Naming / coloring this Claude Code tab; all recolors every active session |
| write-new-skill | /write-new-skill |
Scaffolding a new skill from scratch |
| spot-ai | /spot-ai [path | pasted text] |
Checking prose for AI markers: gray-list style tells (lane 1) and generation-mechanism substance tells like fabricated provenance or invented first-person testimony (lane 2). Flags only. Not a copy-editor — it reports AI markers, not writing advice |
| ai-review | /ai-review |
Full comprehensive repo/project review; orchestrates code-review/security-review/unstale/overbaked/reviewer-2 in parallel and adds gap-hunting + grounded ideation + prioritized synthesis. Run on fable at high+ effort |
| pathfinder | /pathfinder |
This router |
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.
- 8d ago First seen · 114 lines · 59 tokens per session scan A ccdbf8481296
pathfinder is a skill published in the GitHub repository dgilford/ai-science-toolkit (62 stars, last pushed 19d ago), licensed MIT. It adds 59 tokens to every session and 1,603 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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