audit-flow

A system-flow tracing tool that maps how requests move through code, APIs, authentication, data, and networks, with records stored in SQLite.

In plain words
What is it for?
Use it for security audits, compliance documentation, architecture reviews, debugging, incident post-mortems, and Mermaid diagrams.
Why use it?
It helps teams document complex flows and preserve audit history while reviewing how a system works.

Skill for Claude CodeCodex

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 skills/zebbern/claude-code-guide/audit-flow
Any agent
npx skills add zebbern/claude-code-guide --skill audit-flow
Clone the repo
git clone --depth 1 https://github.com/zebbern/claude-code-guide

Made for: Claude Code, Codex.

Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,869 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00084 $0.03869
Opus 5 $0.00042 $0.01935
Sonnet 5 $0.00017 $0.00774
Haiku 4.5 $0.00008 $0.00387

Measured 2d ago against content hash 74b3ce6d14fe, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

audit-flow 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/audit.py, setup.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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

Copies of this mod

1 near-identical copy found in the catalogue:

skills/audit-flow/SKILL.md · 381 lines

How it starts

The opening of the file, as written. The whole thing — 381 lines — stays where its author put it; the contents beside it link to each section on GitHub.

⚠️ MANDATORY ENTRY POINT — Execute Before ANY Other Action

Step 1: Read schema.sql

# ALWAYS read the schema first to understand tables, constraints, views
cat .claude/skills/audit-flow/schema.sql

Step 2: Check if DB exists — NEVER recreate

# Check for existing database
ls -la .audit/audit.db 2>/dev/null && echo "DB EXISTS - DO NOT RECREATE" || echo "No DB - safe to init"

Step 3: If DB exists, show current state

python .claude/skills/audit-flow/scripts/audit.py list

🚫 FORBIDDEN ACTIONS

Action Why Forbidden
rm .audit/audit.db Destroys audit history
audit.py init when DB exists Overwrites existing data
DROP TABLE Destroys audit history
sqlite3 .audit/audit.db < schema.sql when DB exists Overwrites existing data

Rule: If .audit/audit.db exists, ONLY use audit.py list, show, export, or INSERT operations. NEVER recreate.


Audit Flow

Interactive tracing of system flows with SQLite persistence. Supports multiple named flows per session, non-linear flows (branching/merging), and multi-format exports.

Organization Principles

Directory structure by purpose:

  • Audits/Documentation/Compliance: docs/audits/{name}-{YYYY-MM-DD}/
  • Ideation/Brainstorming: docs/ideation/{name}-{YYYY-MM-DD}.md (single file, no subdirectory unless artifacts needed)
  • Debugging/Incident Review: docs/audits/{name}-{YYYY-MM-DD}/ (same as audits — captures evidence)
  • Architecture Review: docs/audits/{name}-{YYYY-MM-DD}/ (same as audits — captures structural analysis)

Required files:

  • INDEX.md (manifest, entry point)
  • README.md (executive summary)
  • {name}-audit.md (flow trace)

Lazy initialization: Create subdirectories only when artifacts exist

Read the full file on GitHub · 381 lines

Files

What ships with it

5 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. 2d ago First seen · 381 lines · 84 tokens per session scan A 74b3ce6d14fe

Subscribe to this mod's changes

audit-flow is a skill published in the GitHub repository zebbern/claude-code-guide (4,597 stars, last pushed yesterday), licensed MIT. It adds 84 tokens to every session and 3,869 once invoked, about $0.0004 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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