cambridge-beer-festival-app: Skill for Claude Code

.claude/skills/run-and-operate/SKILL.md

run-and-operate is a skill for Claude Code from richardthe3rd/cambridge-beer-festival-app. It costs 235 tokens per session (6,533 once invoked), scanned A, original, MIT.

Operational instructions for running, building, testing, and deploying the Cambridge Beer Festival Flutter app. Flutter is a toolkit for building apps, and deployment means publishing a built app or service.

In plain words
What is it for?
They help start the development server, build the web or Android app, run local end-to-end tests, provision its database, update festival data, and prepare releases.
Why use it?
Developers may not know which project commands, environments, URLs, or deployment workflows are correct.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions Claude Code; mentions AGENTS.md.

This is richardthe3rd/cambridge-beer-festival-app's own configuration. It tells Claude Code how to work on cambridge-beer-festival-app 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 cambridge-beer-festival-app configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is MISE_ENV=dev ./bin/mise run setup:playwright.

Reuse

Borrowing it

Nothing to install: this file belongs to richardthe3rd/cambridge-beer-festival-app. 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/richardthe3rd/cambridge-beer-festival-app/main/.claude/skills/run-and-operate/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/richardthe3rd/cambridge-beer-festival-app

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 run-and-operate

README.md
[![agentmods](https://agentmods.dev/badge/skills/richardthe3rd/cambridge-beer-festival-app/run-and-operate/github.svg)](https://agentmods.dev/skills/richardthe3rd/cambridge-beer-festival-app/run-and-operate)
Your own site
<a href="https://agentmods.dev/skills/richardthe3rd/cambridge-beer-festival-app/run-and-operate"><img src="https://agentmods.dev/badge/skills/richardthe3rd/cambridge-beer-festival-app/run-and-operate/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 run-and-operate

Your own site · 80×15
<a href="https://agentmods.dev/skills/richardthe3rd/cambridge-beer-festival-app/run-and-operate"><img src="https://agentmods.dev/badge/skills/richardthe3rd/cambridge-beer-festival-app/run-and-operate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 235 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,533 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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 $0.00235 $0.06533
Opus 5 $0.00118 $0.03266
Sonnet 5 $0.00047 $0.01307
Haiku 4.5 $0.00023 $0.00653

Measured 12d ago against content hash f9f8ac68f857, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

run-and-operate 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 12d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s https://data.cambeerfestival.app/health
.claude/skills/run-and-operate/SKILL.md · 438 lines

How it starts

The opening of the file, as written. The whole thing — 438 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Run and Operate

This skill covers doing things: running the app, building artifacts, deploying them, and knowing where the results land. It assumes the toolchain is already installed (see skill build-and-env if ./bin/mise itself is broken) and that you've already cleared change control for whatever you're about to ship (see skill change-control for gates/policy — this skill does not repeat them).

All commands below were verified against mise.toml, mise.dev.toml, mise-tasks/**, and .github/workflows/** on 2026-07-02. Re-run the checks in "Provenance and maintenance" before trusting a command that looks stale.


1. Run matrix

Goal Command Notes
Dev server MISE_ENV=dev ./bin/mise run dev flutter run -d web-server --web-port 8080 --pid-file flutter-dev.pid (mise-tasks/dev.sh). Serves http://localhost:8080. On Claude Code Web, omit MISE_ENV=dev.miserc.toml already selects claude-code-web,dev when CLAUDE_CODE_REMOTE=true; an explicit MISE_ENV overrides that file and drops the web env.
Local web build (for e2e) MISE_ENV=dev ./bin/mise run build:web flutter build web --release --base-href "/" (mise-tasks/build/web.sh). No dart-defines. Output: build/web/.
Production-shaped web build MISE_ENV=dev ./bin/mise run build:web:prod Runs scripts/get_version_info.sh export first, then flutter build web --release --base-href "/" with --dart-define=GIT_TAG=..., GIT_COMMIT, GIT_BRANCH, BUILD_VERSION, BUILD_TIME (mise-tasks/build/web/prod.sh). Does NOT pass --source-maps — for a crash-decodable local build and the full decode workflow see skill diagnostics-and-tooling §2.
Serve a release build locally MISE_ENV=dev ./bin/mise run serve:release npx http-server build/web -p 8080 --proxy http://localhost:8080? (mise-tasks/serve/release.sh). The --proxy flag is the SPA-fallback trick: any path http-server can't find as a static file gets re-requested through the proxy, which serves index.html — this is what makes deep links like /cbf2026/drink/beer/123 work when refreshed against a static file server. Errors loudly if build/web doesn't exist yet — build first.
Android debug/release build (local) flutter build apk --release / flutter build appbundle --release No mise task wraps this (confirmed: ./bin/mise tasks ls has no build:android* entry) — these are the one place AGENTS.md's "never run raw flutter" rule doesn't apply, because there is nothing to wrap. Debug-signed locally (no android/key.properties) unless you've set one up per docs/tooling/android-release.md. Outputs: build/app/outputs/flutter-apk/app-release.apk, build/app/outputs/bundle/release/app-release.aab.
e2e recipe (local, once per machine) see below

Read the full file on GitHub · 438 lines

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. 12d ago First seen · 438 lines · 235 tokens per session scan A f9f8ac68f857

Subscribe to this mod's changes

run-and-operate is a skill published in the GitHub repository richardthe3rd/cambridge-beer-festival-app (2 stars, last pushed yesterday), licensed MIT. It adds 235 tokens to every session and 6,533 once invoked, about $0.0012 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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