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 sandiiarov/skill-creator --skill skill-creator-improvementgit clone --depth 1 https://github.com/sandiiarov/skill-creatorWrote 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/sandiiarov/skill-creator/skill-creator-improvement)<a href="https://agentmods.dev/skills/sandiiarov/skill-creator/skill-creator-improvement"><img src="https://agentmods.dev/badge/skills/sandiiarov/skill-creator/skill-creator-improvement/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/sandiiarov/skill-creator/skill-creator-improvement"><img src="https://agentmods.dev/badge/skills/sandiiarov/skill-creator/skill-creator-improvement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Rogue Agent · line 12 Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
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 | $0.00056 | $0.00491 |
| Opus 5 | $0.00028 | $0.00246 |
| Sonnet 5 | $0.00011 | $0.00098 |
| Haiku 4.5 | $0.00006 | $0.00049 |
Grade A, and why
skill-creator-improvement 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 9d 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
skill-creator improvement
Use this skill proactively after using a skill generated by @asnd/skill-creator when you discover reusable knowledge that would make future use faster or safer.
Safety boundary
Only edit skills tracked in ~/.skill-creator/lock.json or ${SKILL_CREATOR_HOME}/lock.json when that environment variable is set.
Before editing:
- Identify the generated skill directory you used.
- Read the lock file.
- Confirm the target skill path or
agent:scope:nameentry is present. - If the skill is not tracked, do not modify it. Tell the user it is outside skill-creator management.
What to improve
Add concise, verified learnings directly to the target skill's ## Gotchas section when real usage reveals:
- stable custom fields, IDs, project keys, registry names, or instance-specific mappings
- service quirks that caused failed or repeated discovery
- faster command chains that worked
- corrected command examples or safer flags
- output filters, pagination, or bounded-query patterns that reduce noise
Editing rules
- Keep
SKILL.mdconcise and hot-path useful. - Prefer short bullets in
## Gotchas. - Add only reusable knowledge verified by actual use.
- Do not add secrets, tokens, raw API responses, huge outputs, or one-off task details.
- Do not rewrite the whole skill unless necessary.
- Ask before changing destructive workflows, auth behavior, source URLs, install scope, or anything that could affect production data.
Workflow
- Read the target
SKILL.md. - Locate
## Gotchas; create it if missing. - Add or update the smallest useful bullet(s).
- Update verified examples or usage rules only when a command example changed and was smoke-tested.
- Briefly report what changed and why.
Gotchas
- The lock file is the source of truth for whether this skill may edit another skill.
- Important learnings belong in
SKILL.md, not only in references, because agents rarely read references unless prompted.
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.
- 9d ago First seen · 52 lines · 56 tokens per session scan A 2efe60fd5e11
skill-creator-improvement is a skill published in the GitHub repository sandiiarov/skill-creator (616 stars, last pushed 3mo ago), licensed MIT. It adds 56 tokens to every session and 491 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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