flowproof CLAUDE.md

Repository instructions for Claude Code, an AI coding assistant, working on the Flowproof Rust project. They explain the project, its file layout, required commands, and rules that can cause continuous-integration checks to fail.

In plain words
What is it for?
Use them when asking Claude Code to work in the Flowproof repository, especially when running tests, changing Rust crates, or working with Flowproof's recorded and replayed AI-agent tests.
Why use it?
They give the coding assistant the project context and constraints it needs before changing code. They also distinguish the authoritative project charter from supporting guidance.

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/automators-com/flowproof/claude-md
Clone the repo
git clone --depth 1 https://github.com/automators-com/flowproof
Per session 1,368 This file is loaded in full into every session.
When invoked 1,368 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 $0.01368 $0.01368
Opus 5 $0.00684 $0.00684
Sonnet 5 $0.00274 $0.00274
Haiku 4.5 $0.00137 $0.00137

Measured 2d ago against content hash cf2c64b97034, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

flowproof 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 2d 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 · 124 lines

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.

CLAUDE.md

Guidance for Claude Code (claude.ai/code) working in this repository.

If you are an autonomous loop, read CHARTER.md first. It is the direction, the invariants, and the out-of-scope list, and it outranks anything here. Your role prompt is in scripts/loop/roles/. This file is context; the charter is authority.

What flowproof is

Test an AI agent the way you test everything else: run it once, keep the recording, assert against it from then on.

flowproof sits at the model boundary. It captures a real run — every model request and every tool-call decision — into a trace, then serves that recording back on later runs. Replay makes zero LLM calls, so a suite that cost money per commit and flaked on sampling becomes free and repeatable.

What is asserted is behaviour, not prose: which tools were called, with which arguments, in which order, and which were not.

Repository layout

Rust workspace. All crates move together on one version.

Crate What it is
flowproof-trace trace format, selector ladder, trace-to-script compiler
flowproof-replay deterministic executor — replays traces with zero LLM calls
flowproof-driver native driver: screen capture, input injection, UI Automation
flowproof-agent recording agent: planner loop, pluggable model backends
flowproof-adapters SAP GUI Scripting COM, browser via CDP (behind feature flags)
flowproof-cli the flowproof binary: record, run, heal
flowproof-python PyO3 bindings — the flowproof._native extension module

Also: sdk/python (Python SDK, uv/ruff/pytest), sdk/js (placeholder), docs/ (design + format), examples/, tests/flowproof/ (flows exercising flowproof itself), scripts/gate/ and scripts/loop/ (the autonomous-loop constitution — see below).

The driver is Windows-native, but the workspace must always build on Linux and macOS via the stub backend. Assume your change will be compiled on Linux.

Read the full file on GitHub · 124 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. 2d ago First seen · 124 lines · 1,368 tokens per session scan A cf2c64b97034

Subscribe to this mod's changes

flowproof CLAUDE.md is an instructions file published in the GitHub repository automators-com/flowproof (5 stars, last pushed 2d ago), licensed Apache-2.0. It adds 1,368 tokens to every session, about $0.0068 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 2026-08-31.

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