Agents-Hefesto: Instructions file for Claude Code

CLAUDE.md

Agents-Hefesto CLAUDE.md is an instructions file for Claude Code from artvepa80/Agents-Hefesto. It costs 6,789 tokens per session, scanned A, original, MIT.

A set of Claude Code instructions for Hefesto, an AI code-quality guardian. It defines development standards, security guidance, required procedures, session checklists, and a question-led working method.

In plain words
What is it for?
Following project workflows, applying enterprise code-quality and security standards, starting sessions with required checks, and using guided questions to adapt the work.
Why use it?
It gives Claude Code a consistent way to review and carry out development work. It helps reduce missed checks and unclear decisions during a coding session.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; positional $N argument; mentions Claude Code.

This is artvepa80/Agents-Hefesto's own configuration. It tells Claude Code how to work on Agents-Hefesto 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 Agents-Hefesto configures →

Reuse

Borrowing it

Nothing to install: this file belongs to artvepa80/Agents-Hefesto. 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/artvepa80/Agents-Hefesto/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/artvepa80/Agents-Hefesto

Made for: Claude Code.

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Per session 6,789 This file is loaded in full into every session.
When invoked 6,789 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.06789 $0.06789
Opus 5.5 $0.02716 $0.02716
Sonnet 5.5 $0.01358 $0.01358
Haiku 4.5 $0.00679 $0.00679

Measured today against content hash 9268be84a526, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Agents-Hefesto 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 today.

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 · 551 lines

How it starts

The opening of the file, as written. The whole thing — 551 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HefestoAI — release truth engine for AI-generated code — Claude Code Guidelines

Enterprise Code Quality & Security Development Standards


0. Agent Procedural Workflow (MANDATORY)

Session Start Checklist

On start of ANY task or session, the agent MUST read these files in order:

  1. CLAUDE.md (this file — project rules and standards)
  2. docs/CLAUDE_HEFESTO.md (Hefesto-specific development guidelines and architecture)
  3. MEMORY.md (project status, pending blockers, credentials context)
  4. CHANGELOG.md (recent changes, current version)
  5. README.md (public-facing docs, version badge, feature table)
  6. task.md and walkthrough.md (if present — task-specific context)

Internal work logs and handoffs are kept outside this public repository; do not add them here (the guard rejects docs/worklog/).

Do NOT skip this step. Do NOT guess project state from memory.

Socratic-Adaptive Method (MSA)

Principle: Before acting, understand. Before proposing, diagnose.

Phase 1 — Diagnosis (always)

  • Read the relevant code before proposing changes.
  • Ask yourself: "What already exists that solves this partially or fully?"
  • Document findings with concrete file paths and line numbers.
  • If evidence contradicts the task, report it before proceeding.

Phase 2 — Decision (max 2 questions to user)

  • Ask only if truly blocking (ambiguity, destructive action, 2+ valid approaches).
  • If not blocking, proceed with explicit safe assumptions: "Assuming X (safe default). Proceeding."
  • Never ask what you can resolve by reading the repo.

Phase 3 — Execution (minimal diffs)

  • Reuse what exists before creating new modules.
  • Every change must have evidence: "Changed X because Y (found in file:line)."
  • If a plan requires >3 new files, question whether it can be done with fewer.

Phase 4 — Verification (mandatory)

  • Run repo verifiers before declaring complete.
  • Compare expected result vs actual result.
  • If something fails, diagnose (Phase 1) before retrying.

Read the full file on GitHub · 551 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. today Changed · -3 lines · +7 tokens per session 9268be84a526
  2. yesterday Changed · +3 lines · +489 tokens per session 4f59322f1628
  3. 2d ago Changed · +2 lines · +119 tokens per session d8f59107e1ca
  4. 3d ago Changed ad344a8c0b99
  5. 7d ago Changed · +11 lines · +187 tokens per session cb87f01ed330
  6. 8d ago Changed · +8 lines · +144 tokens per session dd825fedcbd7
  7. 9d ago Changed · +17 lines · +398 tokens per session 8574eb36bdc6
  8. 10d ago Changed · +2 lines · +101 tokens per session 203b95942662
  9. 11d ago Changed · +8 lines · +278 tokens per session 5d5aa89f53c0
  10. 12d ago First seen · 503 lines · 5,066 tokens per session scan A 044d18a3df0f

Subscribe to this mod's changes

Agents-Hefesto CLAUDE.md is an instructions file published in the GitHub repository artvepa80/Agents-Hefesto (7 stars, last pushed today), licensed MIT. It adds 6,789 tokens to every session, about $0.0272 per session on Opus 5.5. 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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