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 eugenepyvovarov/mcpbundler-agent-skills-marketplace --skill skill-boilerplate-skillgit clone --depth 1 https://github.com/eugenepyvovarov/mcpbundler-agent-skills-marketplaceWrote 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/eugenepyvovarov/mcpbundler-agent-skills-marketplace/skill-boilerplate-skill)<a href="https://agentmods.dev/skills/eugenepyvovarov/mcpbundler-agent-skills-marketplace/skill-boilerplate-skill"><img src="https://agentmods.dev/badge/skills/eugenepyvovarov/mcpbundler-agent-skills-marketplace/skill-boilerplate-skill/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/eugenepyvovarov/mcpbundler-agent-skills-marketplace/skill-boilerplate-skill"><img src="https://agentmods.dev/badge/skills/eugenepyvovarov/mcpbundler-agent-skills-marketplace/skill-boilerplate-skill.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 | $0.00063 | $0.00773 |
| Opus 5.5 | $0.00025 | $0.00309 |
| Sonnet 5.5 | $0.00013 | $0.00155 |
| Haiku 4.5 | $0.00006 | $0.00077 |
Grade A, and why
skill-boilerplate 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 1mo 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 — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Boilerplate
Purpose
Document the mandatory local data layout and instructions to embed in new skills. This skill does not create any folders or files.
Determine project_root and data dir
- Let be the folder containing SKILL.md.
- If /.. is
skills, guess project_root as two levels above theskillsfolder (i.e. /../../..). - This works when skills are stored as <project_root>//skills/, where can be .codex, .claude, .github, or any other parent.
- Ask the user to confirm the guess; if it is wrong, request project_root.
- If the skill is not under a
skillsdirectory, do not guess; ask the user for project_root. - Data dir: <project_root>/.skills-data//.
Mandatory SKILL.md section (copy into every new skill)
## Local data and env
- Store all mutable state under <project_root>/.skills-data/<skill-name>/.
- Keep config and registries in .skills-data/<skill-name>/ (for example: config.json, <feature>.json).
- Use .skills-data/<skill-name>/.env for SKILL_ROOT, SKILL_DATA_DIR, and any per-skill env keys.
- Install local tools into .skills-data/<skill-name>/bin and prepend it to PATH when needed.
- Install dependencies under .skills-data/<skill-name>/venv:
- Python: .skills-data/<skill-name>/venv/python
- Node: .skills-data/<skill-name>/venv/node_modules
- Go: .skills-data/<skill-name>/venv/go (modcache, gocache)
- PHP: .skills-data/<skill-name>/venv/php (cache, vendor)
- Write logs/cache/tmp under .skills-data/<skill-name>/logs, .skills-data/<skill-name>/cache, .skills-data/<skill-name>/tmp.
- Keep automation in <skill-root>/scripts and read SKILL_DATA_DIR (default to <project_root>/.skills-data/<skill-name>/).
- Do not write outside <skill-root> and <project_root>/.skills-data/<skill-name>/ unless the user requests it.
Environment variables
Write these keys into .skills-data//.env:
- SKILL_ROOT: absolute path to the skill directory
- SKILL_NAME: skill name
- SKILL_DATA_ROOT: absolute path to <project_root>/.skills-data
- SKILL_DATA_DIR: absolute path to <project_root>/.skills-data/
What ships with it
7 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.
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.
- 1mo ago First seen · 66 lines · 63 tokens per session scan A 94c48f4be2ac
skill-boilerplate is a skill published in the GitHub repository eugenepyvovarov/mcpbundler-agent-skills-marketplace (11 stars, last pushed 8mo ago), licensed MIT. It adds 63 tokens to every session and 773 once invoked, about $0.0003 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 2026-08-30.
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