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 terrylica/cc-skills --skill sciongit clone --depth 1 https://github.com/terrylica/cc-skillsWrote 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/terrylica/cc-skills/scion)<a href="https://agentmods.dev/skills/terrylica/cc-skills/scion"><img src="https://agentmods.dev/badge/skills/terrylica/cc-skills/scion/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/terrylica/cc-skills/scion"><img src="https://agentmods.dev/badge/skills/terrylica/cc-skills/scion.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00034 | $0.03771 |
| Opus 5.5 | $0.00014 | $0.01508 |
| Sonnet 5.5 | $0.00007 | $0.00754 |
| Haiku 4.5 | $0.00003 | $0.00377 |
Grade A, and why
scion 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 18d 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 — 485 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Git-Town Fork Workflow — STOP AND READ
DO NOT ACT ON ASSUMPTIONS. Read this file first.
This is a prescriptive, gated workflow. Every step requires:
- Preflight check - Verify preconditions
- User confirmation - AskUserQuestion before action
- Validation - Verify action succeeded
Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.
⛔ WORKFLOW PHILOSOPHY
GIT-TOWN IS CANONICAL. RAW GIT IS FORBIDDEN FOR BRANCH OPERATIONS.
| Operation | ✅ Use | ❌ Never Use |
|---|---|---|
| Create branch | git town hack |
git checkout -b |
| Update branch | git town sync |
git pull, git merge |
| Create PR | git town propose |
Manual web UI |
| Merge PR | git town ship |
git merge + push |
| Switch branch | git town switch |
git checkout |
Exception: Raw git for commits, staging, log viewing, diff (git-town doesn't replace these).
Phase 0: Preflight — MANDATORY FIRST
Execute this BEFORE any other action.
Step 0.1: Create TodoWrite
TodoWrite with todos:
- "[Fork] Phase 0: Check git-town installation" | in_progress
- "[Fork] Phase 0: Check GitHub CLI installation" | pending
- "[Fork] Phase 0: Detect current repository context" | pending
- "[Fork] Phase 0: Detect existing remotes" | pending
- "[Fork] Phase 0: Detect GitHub account(s)" | pending
- "[Fork] Phase 1: GATE - Present findings and get user confirmation" | pending
- "[Fork] Phase 2: Create fork (if needed)" | pending
- "[Fork] Phase 2: Configure remotes" | pending
- "[Fork] Phase 2: Initialize git-town" | pending
- "[Fork] Phase 3: Validate setup" | pending
- "[Fork] Phase 3: Display workflow cheatsheet" | pending
What ships with it
1 file 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.
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.
- 18d ago Changed · -1 lines 102e93cf20fe
- 1mo ago Changed 82cca6ce3871
- 1mo ago First seen · 486 lines · 34 tokens per session scan A 07dda2482213
scion is a skill published in the GitHub repository terrylica/cc-skills (0 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 3,771 once invoked, about $0.0001 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 2026-09-05.
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