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/terrylica/cc-skills/formatnpx skills add terrylica/cc-skills --skill formatgit 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/format)<a href="https://agentmods.dev/skills/terrylica/cc-skills/format"><img src="https://agentmods.dev/badge/skills/terrylica/cc-skills/format.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 | $0.00029 | $0.00596 |
| Opus 5 | $0.00015 | $0.00298 |
| Sonnet 5 | $0.00006 | $0.00119 |
| Haiku 4.5 | $0.00003 | $0.00060 |
Grade A, and why
format 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 5d 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 — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/asciinema-tools:format
Display reference documentation for the asciinema v3 .cast format.
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.
Arguments
| Argument | Description |
|---|---|
header |
Show header field specification |
events |
Show event codes deep-dive |
parsing |
Show jq/bash parsing examples |
all |
Show complete format reference |
-f, --file |
Use specific .cast for examples |
--live |
Run parsing examples on file |
Execution
Invoke the asciinema-cast-format skill with user-selected section.
Skip Logic
- If section provided -> skip Phase 1 (section selection)
- If
-fprovided withparsing-> skip Phase 2 (example file)
Workflow
- Selection: AskUserQuestion for section
- Example: AskUserQuestion for example file (if parsing)
- Display: Show requested documentation
Examples
# Show header format
/asciinema-tools:format header
# Show event codes
/asciinema-tools:format events
# Parse specific file with live examples
/asciinema-tools:format parsing -f session.cast --live
Troubleshooting
| Issue | Cause | Solution |
|---|---|---|
| File not found | Invalid path | Use absolute path or ensure file exists |
| Parse error | Invalid NDJSON | Check file is valid asciinema v3 format |
| No output | Missing section | Specify one of: header, events, parsing, all |
Post-Execution Reflection
After this skill completes, check before closing:
- Did the command succeed? — If not, fix the instruction or error table that caused the failure.
- Did parameters or output change? — If the underlying tool's interface drifted, update Usage examples and Parameters table to match.
- Was a workaround needed? — If you had to improvise (different flags, extra steps), update this SKILL.md so the next invocation doesn't need the same workaround.
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.
- 5d ago First seen · 72 lines · 29 tokens per session scan A 64f4fd85444a
format is a skill published in the GitHub repository terrylica/cc-skills (62 stars, last pushed today), licensed MIT. It adds 29 tokens to every session and 596 once invoked, about $0.0001 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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