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architect: Instructions file for Claude Code

CLAUDE.md

architect CLAUDE.md is an instructions file for Claude Code from forketyfork/architect. It costs 5,999 tokens per session, scanned A, original, MIT.

A project instruction file for Architect, a terminal-based coding environment built with Zig and SDL3. It tells coding agents how to set up, build, run, test, and check the project.

In plain words
What is it for?
Use it when developing Architect, especially when activating its Nix environment, preparing a worktree, building or running it, running tests, linting, or checking formatting.
Why use it?
It gives agents the project’s expected commands, tools, and environment so they can work consistently in a fresh checkout or worktree.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions AGENTS.md; mentions Codex.

This is forketyfork/architect's own configuration. It tells Claude Code how to work on architect 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 architect configures →

not rated 52repo changed today A scan 5,999 tokens original MIT
View source ↗ forketyfork/architect forketyfork.github.io
Reuse

Borrowing it

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

Made for: Claude Code.

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Per session 5,999 This file is loaded in full into every session.
When invoked 5,999 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 $0.05999 $0.05999
Opus 5.5 $0.02400 $0.02400
Sonnet 5.5 $0.01200 $0.01200
Haiku 4.5 $0.00600 $0.00600

Measured today against content hash c29f9771660f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

architect 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 · 277 lines

How it starts

The opening of the file, as written. The whole thing — 277 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md (symlinked as AGENTS.md)

[Canonical file: CLAUDE.md. Keep AGENTS.md as a symlink to CLAUDE.md.]

Project

Name: Architect Description: A terminal multiplexer and AI-assisted coding environment built on SDL3 and Zig. Architect lets developers run multiple terminal sessions in a tiled layout, annotate diffs, and integrate Claude agents directly into their workflow. Stack: Zig 0.16, SDL3, ghostty-vt (terminal emulation), Nix dev shell, just task runner Status: Active development

Build & Run

# Worktree bootstrap (run in a fresh worktree)
just setup   # pre-caches the ghostty-vt tarball; skip if already cached

# Environment activation
nix develop  # or: direnv allow
#
# Minimal host prerequisites:
# - Nix with flakes enabled (or direnv + nix-direnv)
# - macOS (primary platform; Linux support is partial)

# Build
zig build

# Run
zig build run

# Test
zig build test

# Type check
N/A  # Zig build covers type checking

# Lint
just lint

# Format check
zig fmt --check src/

Infrastructure

  • Source code hosting: GitHub — URL: https://github.com/forketyfork/architect — CLI: gh — Skill: managing-github
  • Issue tracker: GitHub Issues — URL: https://github.com/forketyfork/architect/issues — CLI: gh issue — Skill: managing-github
  • CI/CD: GitHub Actions — config: .github/workflows/
  • Issue/PR linkage convention: Reference issues in commit messages and PR descriptions using #<issue-number>. Use Closes #N or Fixes #N in the PR body to auto-close issues on merge.

Use the managing-github skill for all GitHub operations: creating issues, pull requests, fetching review threads, posting comments, and searching.

Project Documentation

Read these before making any changes:

  • README.md — User-facing product overview; skim for expected behavior, do not duplicate here
  • docs/ARCHITECTURE.md — How it's built (layers, modules, dependencies)
  • docs/configuration.md — Config shape for config.toml and persistence.toml
  • docs/development.md — Developer setup and workflow notes
  • docs/perf-debugging.md — Read before investigating rendering/terminal performance: headless repro via the control socket (scripts/perf/), codex resize behavior, Debug-vs-Release ghostty-vt costs, SDL/Metal pipeline pitfalls

Read the full file on GitHub · 277 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 · +5 lines · +329 tokens per session c29f9771660f
  2. 1mo ago Changed · +49 tokens per session e6d68247ec55
  3. 1mo ago Changed · +18 lines · +999 tokens per session c5c190a01e46
  4. 1mo ago First seen · 254 lines · 4,622 tokens per session scan A 5db68071803c

Subscribe to this mod's changes

architect CLAUDE.md is an instructions file published in the GitHub repository forketyfork/architect (52 stars, last pushed yesterday), licensed MIT. It adds 5,999 tokens to every session, about $0.0240 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 2026-08-30.

Claude Codecodexghosttysdl3terminalzig
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