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 quangpl/browser-extension-skills --skill extension-publishgit clone --depth 1 https://github.com/quangpl/browser-extension-skillsWrote 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/quangpl/browser-extension-skills/extension-publish)<a href="https://agentmods.dev/skills/quangpl/browser-extension-skills/extension-publish"><img src="https://agentmods.dev/badge/skills/quangpl/browser-extension-skills/extension-publish/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/quangpl/browser-extension-skills/extension-publish"><img src="https://agentmods.dev/badge/skills/quangpl/browser-extension-skills/extension-publish.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 | $0.00031 | $0.00913 |
| Opus 5 | $0.00015 | $0.00456 |
| Sonnet 5 | $0.00006 | $0.00183 |
| Haiku 4.5 | $0.00003 | $0.00091 |
Grade A, and why
extension-publish 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 11d 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 — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.
extension-publishing
Workflow
prepare → package → submit → review → publish
- Prepare: assets, privacy policy, permission justifications, manifest
- Package:
zipsource (exclude dev files), validate manifest - Submit: Chrome Web Store Developer Dashboard
- Review: 1–3 days typical; up to 7 days for new publishers
- Publish: auto or manual rollout
Pre-Submission Checklist (Quick)
- Manifest v3 only (MV2 deprecated)
-
name,version,descriptionset in manifest - Icons: 16×16, 48×48, 128×128 PNG
- Screenshots: min 1, 1280×800 or 640×400
- Single purpose clearly defined
- Only permissions actually used
- Privacy policy URL (required if collecting data)
- Permission justification field filled for sensitive perms
- No remote code execution (
eval, remote scripts) - All features functional in review build
Full checklist: references/submission-checklist.md
Top 10 Rejection Reasons
- Single purpose violation — does too many unrelated things
- Excessive/unnecessary permissions
- Missing privacy policy (required when user data collected)
- Missing permission justification in submission form
- Description doesn't match functionality
- Keyword spam in title/description
- Remote code execution (
eval, external scripts) - Improper user data handling or disclosure
- Extension non-functional or crashes
- Broken features / inaccessible links
Full details + fixes: references/common-rejections.md
Listing Optimization Essentials
- Title:
<Action verb> + <Benefit>, max 45 chars, no keyword stuffing - Description first 150 chars: shown in search — make them count
- Structure: problem → solution → key benefits → CTA
- Screenshots: annotate features, show real UI, 1280×800
- Category: choose most specific fit
Full guide: references/store-listing-optimization.md
What ships with it
4 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.
- 11d ago First seen · 124 lines · 31 tokens per session scan A 8dc1eb2956c5
extension-publish is a skill published in the GitHub repository quangpl/browser-extension-skills (49 stars, last pushed 3mo ago), licensed MIT. It adds 31 tokens to every session and 913 once invoked, about $0.0002 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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