gno: Skill for Claude Code

.agents/skills/dogfood/SKILL.md

dogfood is a skill for Claude Code from gmickel/gno. It costs 100 tokens per session (2,333 once invoked), scanned A, a copy of dogfood, MIT.

A structured way to explore and test a web application to find bugs, usability problems, and other quality issues.

In plain words
What is it for?
It helps test a site or app by URL, optionally sign in, focus on a chosen area, record findings, and produce a report with reproduction details.
Why use it?
It turns informal testing into repeatable checks with evidence that lets developers reproduce each problem.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is gmickel/gno's own configuration. It tells Claude Code how to work on gno itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything gno configures →

Reuse

Borrowing it

Nothing to install: this file belongs to gmickel/gno. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/gmickel/gno/main/.agents/skills/dogfood/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/gmickel/gno

Made for: Claude Code.

Wrote 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.

agentmods badge for dogfood

README.md
[![agentmods](https://agentmods.dev/badge/skills/gmickel/gno/dogfood/github.svg)](https://agentmods.dev/skills/gmickel/gno/dogfood)
Your own site
<a href="https://agentmods.dev/skills/gmickel/gno/dogfood"><img src="https://agentmods.dev/badge/skills/gmickel/gno/dogfood/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.

agentmods 80×15 button for dogfood

Your own site · 80×15
<a href="https://agentmods.dev/skills/gmickel/gno/dogfood"><img src="https://agentmods.dev/badge/skills/gmickel/gno/dogfood.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 100 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,333 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 92% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00100 $0.02333
Opus 5 $0.00050 $0.01167
Sonnet 5 $0.00020 $0.00467
Haiku 4.5 $0.00010 $0.00233

Measured 11d ago against content hash 816368af6637, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

dogfood 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.

Origin

This is a copy

92% identical to dogfood — 26 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/dogfood/SKILL.md · 217 lines

How it starts

The opening of the file, as written. The whole thing — 217 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Dogfood

Systematically explore a web application, find issues, and produce a report with full reproduction evidence for every finding.

Setup

Only the Target URL is required. Everything else has sensible defaults -- use them unless the user explicitly provides an override.

Parameter Default Example override
Target URL (required) vercel.com, http://localhost:3000
Session name Slugified domain (e.g., vercel.com -> vercel-com) --session my-session
Output directory ./dogfood-output/ Output directory: /tmp/qa
Scope Full app Focus on the billing page
Authentication None Sign in to [email protected]

If the user says something like "dogfood vercel.com", start immediately with defaults. Do not ask clarifying questions unless authentication is mentioned but credentials are missing.

Always use agent-browser directly -- never npx agent-browser. The direct binary uses the fast Rust client. npx routes through Node.js and is significantly slower.

Workflow

1. Initialize    Set up session, output dirs, report file
2. Authenticate  Sign in if needed, save state
3. Orient        Navigate to starting point, take initial snapshot
4. Explore       Systematically visit pages and test features
5. Document      Screenshot + record each issue as found
6. Wrap up       Update summary counts, close session

1. Initialize

mkdir -p {OUTPUT_DIR}/screenshots {OUTPUT_DIR}/videos

Copy the report template into the output directory and fill in the header fields:

Read the full file on GitHub · 217 lines

Files

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.

Changes

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.

  1. 11d ago First seen · 217 lines · 100 tokens per session scan A 816368af6637

Subscribe to this mod's changes

dogfood is a skill published in the GitHub repository gmickel/gno (109 stars, last pushed 2d ago), licensed MIT. It adds 100 tokens to every session and 2,333 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to dogfood, differing in 26 lines, and is treated as a copy.

Related

Other skills, from other repositories

esm

Comprehensive toolkit for protein language models including ESM3 (generative multimodal protein design across sequence, structure, and function) and ESM C (efficient protein embeddings and representations). Use this skill when working with protein sequences, structures, or function prediction; designing novel…

synthetic-sciences/openscience · 86 tokens

simplicio-orient

Terminal-first execution — answer facts with the shell, never with the LLM. Use whenever a step needs a fact about the filesystem, git, processes, or system resources, or runs a build/test/lint/diff whose output would flood context. Substitutes deterministic shell/CLI calls for native LLM operations and clamps their…

wesleysimplicio/simplicio · 119 tokens

simplicio-cli

Use simplicio-cli for verified code changes through mapper, precedent, six-layer prompts, tests, and a verify loop. Trigger on code edits, task-to-code, diff+test, or simplicio-py requests.

wesleysimplicio/simplicio · 49 tokens

simplicio-dev-cli

Perform deterministic Simplicio code changes and validation through the Dev CLI. Use for file edits, patches, implementation, formatting, tests, diagnostics, pre-effect validation, retries, evidence files, and safe mutation workflows. The agent decides intent; Dev CLI owns the mutation and verification.

wesleysimplicio/simplicio · 62 tokens

browser-qa

QA de navegador y regresión visual con Playwright: navegación, capturas (viewport/página/elemento), comparación contra baseline, snapshots de accesibilidad e inspección de red/consola/DOM, cross-browser.

contactandrewchl-wq/turtle-mcp · 49 tokens

imaging-data-commons

Query and download public cancer imaging data from NCI Imaging Data Commons using idc-index. Use for accessing large-scale radiology (CT, MR, PET) and pathology datasets for AI training or research. No authentication required. Query by metadata, visualize in browser, check licenses.

synthetic-sciences/openscience · 62 tokens