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/blackblue-labs/skill2/skill2-packagenpx skills add blackblue-labs/skill2 --skill skill2-packagegit clone --depth 1 https://github.com/blackblue-labs/skill2Wrote 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/blackblue-labs/skill2/skill2-package)<a href="https://agentmods.dev/skills/blackblue-labs/skill2/skill2-package"><img src="https://agentmods.dev/badge/skills/blackblue-labs/skill2/skill2-package.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 | $0.00545 |
| Opus 5 | $0.00015 | $0.00272 |
| Sonnet 5 | $0.00006 | $0.00109 |
| Haiku 4.5 | $0.00003 | $0.00055 |
Grade A, and why
skill2-package 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 — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Package and Publish Skill Repositories
Make a Skill repository installable. Add public presentation or remote release work only when requested.
Select a Profile
- Native (default): use the target harness's Git, plugin, marketplace, or package-manager install path. Do not require an archive, checksum, or custom installer.
- Artifact: use only when the user requests a distributable archive or the destination requires one. Add versioned artifact, checksum, and artifact install smoke.
- Release: use only when the user requests public documentation, push, tag, release, registry, or marketplace work. Read references/publish.md.
Use the smallest profile that satisfies the request. Profiles compose; Release does not imply Artifact.
README Language
README.md is always canonical English. When the user's query is primarily non-English, add README.<language-code>.md; Chinese uses README.zh.md. Explicit language requests override query detection. Preserve existing translations unless removal is requested.
Candidate
Keep shared behavior in skills/<name>/SKILL.md. Add harness metadata only when a target format requires it. Include only resources used by installed skills.
When a Skill ships deterministic tooling, the installed candidate must include that Skill's scripts/ entrypoint and generated _runtime/ (or equivalent self-contained resources). Detached install paths must not require repository src/, .venv, or a global skill2 CLI.
Native Gates
- Every Skill passes format and repository lint.
- References, scripts, and assets resolve.
- Scripts are auditable and executable when required.
- Skill-owned runtimes stay in sync with canonical source when the repo generates them.
- Candidate contains no secrets, accidental local paths, or unrelated large files.
- Documented native install path succeeds in a clean temporary home when feasible.
- An installer, when shipped, is explicit, repeatable, conflict-aware, and safe to preview.
What ships with it
10 files 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.
- references/publish.md 2.1 KB
- scripts/_runtime/skill2/__init__.py 22 B runs code
- scripts/_runtime/skill2/bundle.py 9.1 KB runs code
- scripts/_runtime/skill2/cli.py 13 KB runs code
- scripts/_runtime/skill2/lint.py 3.6 KB runs code
- scripts/_runtime/skill2/models.py 6.5 KB runs code
- scripts/_runtime/skill2/package.py 19 KB runs code
- scripts/_runtime/skill2/scan.py 7.3 KB runs code
- scripts/.runtime-manifest.json 1.3 KB
- scripts/run 939 B
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 · 53 lines · 29 tokens per session scan A 77d4b1edf6bd
skill2-package is a skill published in the GitHub repository blackblue-labs/skill2 (33 stars, last pushed 22d ago), licensed MIT. It adds 29 tokens to every session and 545 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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