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 X-School-Academy/skill-pilot --skill install-third-party-agent-skill-from-gitgit clone --depth 1 https://github.com/X-School-Academy/skill-pilotWrote 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/x-school-academy/skill-pilot/install-third-party-agent-skill-from-git)<a href="https://agentmods.dev/skills/x-school-academy/skill-pilot/install-third-party-agent-skill-from-git"><img src="https://agentmods.dev/badge/skills/x-school-academy/skill-pilot/install-third-party-agent-skill-from-git/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/x-school-academy/skill-pilot/install-third-party-agent-skill-from-git"><img src="https://agentmods.dev/badge/skills/x-school-academy/skill-pilot/install-third-party-agent-skill-from-git.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 | $0.00068 | $0.01105 |
| Opus 5.5 | $0.00027 | $0.00442 |
| Sonnet 5.5 | $0.00014 | $0.00221 |
| Haiku 4.5 | $0.00007 | $0.00111 |
Grade A, and why
install-third-party-agent-skill-from-git 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 16d 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 — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AI Builder - Install Third-Party Skill From Git
Import and normalize a third-party skill from a remote repository in a controlled, repeatable flow.
When to Use This Skill
- User gives a Git or GitHub URL and asks to install a skill
- Only a subfolder in the remote repository is needed
- User wants local normalization to this project's skill rules
- User wants verification and installation done at the end
Your Roles in This Skill
- Project Manager: Confirm scope, destination, and change boundaries
- Backend Developer (Engineer): Execute sparse checkout, copy, and normalization steps
- Technical Writer: Keep SKILL.md and LICENSE update notes clear and auditable
- Security Engineer: Review trust assumptions before pulling third-party code
Role Communication
As an expert in your assigned roles, you must announce your actions before performing them using the following format:
As a {Role, and Role-XYZ if have more roles}, I will {action description}
This communication pattern ensures transparency and allows for human-in-the-loop oversight at key decision points.
Instructions
Follow these steps in order.
Step 1: Identify source repo and skill folder
Collect and confirm:
- Remote URL (HTTPS or SSH), for example
https://github.com/org/repo.git - Exact skill folder path in that repo, for example
skills/my-skill - Destination parent folder:
- Default:
core/skills/third-party/ - Or user-provided destination
- Default:
Before cloning, state that third-party code is untrusted until reviewed.
Step 2: Sparse checkout only the skill folder into .skillpilot/temp/
Run manual commands (no helper scripts):
- Create a unique temp directory under
.skillpilot/temp/ - Clone with
--no-checkoutand--filter=blob:none - Use sparse checkout to materialize only the requested skill folder
- Copy the imported folder into destination parent directory
For command details, see references/sparse-checkout.md.
Step 3: Copy to third-party skills folder (or user-requested destination)
What ships with it
2 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.
- 16d ago First seen · 132 lines · 68 tokens per session scan A 8bad2fca05eb
install-third-party-agent-skill-from-git is a skill published in the GitHub repository X-School-Academy/skill-pilot (20 stars, last pushed 4mo ago), licensed MIT. It adds 68 tokens to every session and 1,105 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 2026-10-02.
Other skills, from other repositories
merge-batch
Prepare and merge an owner-selected PR batch with contributor credit and exact-candidate admission. Use for a pasted PR list; combined focused validation is diagnostic, and every actual landing still requires its applicable checks and authorization.
prowler-commit
Creates professional git commits following conventional-commits format. Trigger: When creating commits, after completing code changes, when user asks to commit.
gh-auth-isolation
Safely manage multiple GitHub identities (EMU + personal) in agent workflows.
comet-github
A routing guide for Comet-related GitHub work. It directs requests about pull requests, issues, CI failures, ideas, and fixes to the appropriate review or implementation process.
release-helper
Ensures configuration and code changes are released correctly. Use PROACTIVELY whenever you edit config.json, change any setting, or fix a configuration bug in this project, so the change reaches production.
github-skill
Work with GitHub via the gh CLI — clone repositories, create/list/merge pull requests, create/list issues, and run any other gh command (API calls, workflow runs, releases, repo administration). List operations return parsed JSON.