Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/UniM0cha/self-improving-skillsnpx agentmods add skills/unim0cha/self-improving-skills/codex-skill-curatorWrote 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/unim0cha/self-improving-skills/codex-skill-curator)<a href="https://agentmods.dev/skills/unim0cha/self-improving-skills/codex-skill-curator"><img src="https://agentmods.dev/badge/skills/unim0cha/self-improving-skills/codex-skill-curator/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/unim0cha/self-improving-skills/codex-skill-curator"><img src="https://agentmods.dev/badge/skills/unim0cha/self-improving-skills/codex-skill-curator.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00038 | $0.00498 |
| Opus 5.5 | $0.00015 | $0.00199 |
| Sonnet 5.5 | $0.00008 | $0.00100 |
| Haiku 4.5 | $0.00004 | $0.00050 |
Grade A, and why
codex-skill-curator 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 today.
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
Codex Skill Curator
Use this skill when the user asks to clean up, audit, curate, archive, restore, or review Codex skills.
Curator Rules
- Start with dry-run unless the user explicitly asks to mutate.
- Only manage user-created or repo-created skills.
- Never mutate bundled, system, admin, or plugin-distributed skills.
- Respect pinned skills. Pinned skills can be patched, but not archived or deleted.
- Archive instead of deleting. Archive moves must be reversible.
- Take a backup before any mutating run.
- Consolidate at the package level. If a skill has
references/,templates/,scripts/, orassets/, preserve or re-home those files rather than flattening onlySKILL.md.
Tooling
Prefer MCP tools from the bundled self-improving-skills server:
codex_skill_curatefor stale/archive candidates (each run persists a report under the data dir'slogs/curator/— cite it when summarizing)codex_skill_usagefor telemetrycodex_skill_archivefor reversible archive moves (a name collision in.archive/gets a timestamp suffix automatically; restore finds it)codex_skill_restorefor archived skill recoverycodex_skill_backups/codex_skill_rollbackto list backups and restore one by exact backup_id — the rollback backs up the current content first, so it is itself undoable (undo_backupin the result)codex_skill_prune_backupsto keep only the newest N backups per skillcodex_skill_pinfor pin/unpincodex_self_improvement_statusfor plugin health (showslast_curate_atand the last report path)
If MCP is unavailable, run:
python3 ../../scripts/skill_manager_cli.py curate --dry-run
python3 ../../scripts/skill_manager_cli.py usage
python3 ../../scripts/skill_manager_cli.py status
Resolve script paths relative to this SKILL.md location.
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.
- today First seen · 47 lines · 38 tokens per session scan A d4fd9381d5e8
codex-skill-curator is a skill published in the GitHub repository UniM0cha/self-improving-skills (51 stars, last pushed 1mo ago), licensed MIT. It adds 38 tokens to every session and 498 once invoked, about $0.0002 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 2026-11-07.
codex-skill-curator compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| codex-skill-curatorUniM0cha/self-improving-skills | Skill | 51 | 1mo ago | MIT | A | 38 | Codex |
| browser-harness-authoringAtlasOmnia/hermes-custom-pack | Skill | 76 | 11d ago | MIT | A | 60 | Claude Code, Codex |
| notion-artifact-captureAtlasOmnia/hermes-custom-pack | Skill | 76 | 11d ago | MIT | A | 82 | Claude Code, Codex |
| obsidian-memory-architectureAtlasOmnia/hermes-custom-pack | Skill | 76 | 11d ago | MIT | A | 56 | Claude Code, Codex |
| hermes-diagnostic-reviewAtlasOmnia/hermes-custom-pack | Skill | 76 | 11d ago | MIT | A | 49 | Claude Code, Codex |
| reddit-browse-and-postAtlasOmnia/hermes-custom-pack | Skill | 76 | 11d ago | MIT | A | 54 | Claude Code, Codex |
| medical-bill-reconciliationAtlasOmnia/hermes-custom-pack | Skill | 76 | 11d ago | MIT | A | 19 | Claude Code, Codex |