fizzbee CLAUDE.md

fizzbee CLAUDE.md is an instructions file for coding agents from fizzbee-io/fizzbee. It costs 455 tokens per session, scanned A, original, Apache-2.0.

A set of coding instructions for FizzBee, a model checker that explores possible system states to find rule violations. It documents how to build and run the checker, and how to compare its reference examples with expected results.

In plain words
What is it for?
Use it when building or running FizzBee specifications, testing reference examples, updating an expected-results file after an intentional change, or working with Bazel and the test scripts.
Why use it?
It specifies the project's required wrapper scripts, build commands, and test process. This avoids using an unsupported binary directly and makes it easier to tell an intentional output change from a regression.

Instructions file

Install

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.

agentmods
npx agentmods add instructions/fizzbee-io/fizzbee/claude-md
Clone the repo
git clone --depth 1 https://github.com/fizzbee-io/fizzbee

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 fizzbee CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/fizzbee-io/fizzbee/claude-md.svg)](https://agentmods.dev/instructions/fizzbee-io/fizzbee/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/fizzbee-io/fizzbee/claude-md"><img src="https://agentmods.dev/badge/instructions/fizzbee-io/fizzbee/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 455 This file is loaded in full into every session.
When invoked 455 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00455 $0.00455
Opus 5 $0.00228 $0.00228
Sonnet 5 $0.00091 $0.00091
Haiku 4.5 $0.00046 $0.00046

Measured 4d ago against content hash 7bfd9d4b2dd6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fizzbee CLAUDE.md 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 4d 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.

CLAUDE.md · 42 lines

What it actually says

Claude Code Instructions for Fizzbee

Build Commands

  • Build the model checker: bazel build //:fizzbee
  • Run the model checker: ./fizz path/to/spec/file.fizz (use the wrapper script, not the bazel binary directly)

Important Guidelines

  • Do NOT use gazelle to update BUILD files
  • The ./fizz wrapper script handles compilation and execution - always use it instead of ./bazel-bin/fizzbee_/fizzbee

Testing

  • Reference examples are in examples/references/ organized by feature
  • Many examples have baseline.txt files for comparing output metrics (Nodes, Valid Nodes, Unique States, PASSED/FAILED status)
  • Generated files (.json AST files and out/ directories) can be deleted after testing

Running the test suite

python3 test_references.py

Runs all 94 reference examples (those with a baseline.txt) and all lovable specs in examples/requirements/lovable/. Compares output semantically (strips timestamps, elapsed times, file paths). Reports PASS/FAIL per example and a summary.

To update a baseline after an intentional change:

./fizz examples/references/NN-name/Spec.fizz > examples/references/NN-name/baseline.txt 2>&1

Project Structure

  • lib/ - Core library code (starlark types, symmetry, JSON marshalling)
  • modelchecker/ - Model checking engine (processor, threads, cloning, state visitor)
  • parser/ - Fizz language parser
  • proto/ - Protocol buffer definitions
  • examples/ - Example specifications
    • references/ - Reference examples organized by feature (01-xx through 16-xx)
    • tutorials/ - To be removed. Old tutorial specifications, some of which may be outdated and may not even work
  • samples/ - Larger sample specifications. Again, not organized and may be outdated and may not even work, but kept for reference. These are not merged into git.
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. 4d ago First seen · 42 lines · 455 tokens per session scan A 7bfd9d4b2dd6

Subscribe to this mod's changes

fizzbee CLAUDE.md is an instructions file published in the GitHub repository fizzbee-io/fizzbee (347 stars, last pushed 8d ago), licensed Apache-2.0. It adds 455 tokens to every session, about $0.0023 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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