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 patleeman/neon-pilot --skill local-extension-developmentgit clone --depth 1 https://github.com/patleeman/neon-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/patleeman/neon-pilot/local-extension-development)<a href="https://agentmods.dev/skills/patleeman/neon-pilot/local-extension-development"><img src="https://agentmods.dev/badge/skills/patleeman/neon-pilot/local-extension-development/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/patleeman/neon-pilot/local-extension-development"><img src="https://agentmods.dev/badge/skills/patleeman/neon-pilot/local-extension-development.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 | $0.00059 | $0.01948 |
| Opus 5.5 | $0.00024 | $0.00779 |
| Sonnet 5.5 | $0.00012 | $0.00390 |
| Haiku 4.5 | $0.00006 | $0.00195 |
Grade A, and why
local-extension-development scanned grade A with 1 finding 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 2mo 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.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
- Never import `child_process`, `worker_threads`, or Electron. How it starts
The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Neon Pilot application authoring
Build against the installed application only. Do not search for or depend on the Neon Pilot repository, private source files, pnpm, workspace packages, or nearby first-party extensions. Never read those sources even if a checkout happens to exist on the machine: that makes the result non-portable and fails the bundled-authoring benchmark. This skill and its references are the complete authoring contract.
Do not extract, grep, decompile, or inspect app.asar, compiled desktop JavaScript, or other private implementation files inside the installed bundle. Packaged declarations, references, templates, CLI output, and runtime behavior are the only authoring contract. If a public component is still underspecified after reading them, use a documented equivalent pattern or report the missing public contract instead of reverse-engineering the host.
Treat the installed Neon Pilot app bundle and every packaged skill/reference/runtime path as read-only. Never create files there, run npm install/pnpm install/yarn, initialize a package, or alter packaged resources to inspect or repair the SDK. Edit only the packageRoot returned by neon-pilot extensions create; use packaged declarations and build errors to choose supported exports.
Load the right references
Read these files relative to this SKILL.md before implementing:
- Always read application-model.md and manifest.md.
- For any UI, read frontend-ui.md.
- For actions, tools, storage, services, settings, filesystem, shell, or network work, read backend.md and the exact public-api.md signatures.
For a specialized contribution or backend module not expanded there, read the packaged declarations under
references/sdk/:index.d.tsandui.d.tsdefine the complete manifest, surface, client, and backend-context contract;backend/<name>.d.tsdefines every allowlisted@neon-pilot/extensions/backend/<name>module. - Before finishing, read validation-and-qa.md.
What ships with it
6 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.
- 2mo ago First seen · 153 lines · 59 tokens per session scan A 037eace80e87
local-extension-development is a skill published in the GitHub repository patleeman/neon-pilot (23 stars, last pushed 3mo ago), licensed MIT. It adds 59 tokens to every session and 1,948 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
local-extension-development compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| local-extension-developmentpatleeman/neon-pilot | Skill | 23 | 3mo ago | MIT | A | 59 | Claude Code, Codex |
| imagegenopenai/codex | Skill | 133k | yesterday | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 99k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 313k | 3d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | yesterday | MIT | A | 95 | Claude Code |
| next-partial-prefetching-adoptionvercel/next.js | Skill | 143k | yesterday | MIT | A | 103 | Claude Code |