gwm-cli: Instructions file for Codex

AGENTS.md

gwm-cli AGENTS.md is an instructions file for Codex, OpenCode from kbrdn1/gwm-cli. It costs 2,270 tokens per session, scanned A, original, Apache-2.0.

Project instructions that require test-driven development (TDD): write a failing test, add the smallest code change that passes it, then clean up. They define which changes need tests and where those tests belong.

In plain words
What is it for?
Use them when changing the gwm-cli project, especially for new commands, flags, output formats, bug fixes, and other externally visible behavior.
Why use it?
They give AI coding assistants clear contribution rules and prevent new behavior from being added without a test proving it works.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents; mentions AGENTS.md.

This is kbrdn1/gwm-cli's own configuration. It tells Codex and OpenCode how to work on gwm-cli 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 gwm-cli configures →

Reuse

Borrowing it

Nothing to install: this file belongs to kbrdn1/gwm-cli. 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/kbrdn1/gwm-cli/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/kbrdn1/gwm-cli

Made for: Codex, OpenCode.

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Per session 2,270 This file is loaded in full into every session.
When invoked 2,270 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 $0.02270 $0.02270
Opus 5.5 $0.00908 $0.00908
Sonnet 5.5 $0.00454 $0.00454
Haiku 4.5 $0.00227 $0.00227

Measured 2mo ago against content hash 5fb16865175c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gwm-cli AGENTS.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 2mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

gwm-cli — house rules for AI assistants

This file is the project-level AGENTS.md. Anything stated here OVERRIDES defaults and applies to every contribution made via an AI assistant in this repository.

🔴 Primordial rule — Test-Driven Development is mandatory

No production code lands without a failing test that pinned the behaviour down first. This is not a guideline, it is a hard merge requirement. PRs that add or change behaviour without tests are sent back, full stop.

The TDD loop (red → green → refactor)

  1. Red — write a failing test that captures the new behaviour or the bug you are fixing. Run it. It MUST fail for the right reason (assertion mismatch, not a compile error in unrelated code). Commit the test alone if it helps reviewers see the contract.
  2. Green — write the minimum production code to make the test pass. No extra branches, no speculative abstractions.
  3. Refactor — clean up while the tests are green. Re-run the full suite after every refactor step.

What counts as "behaviour"

Anything observable from outside the function under test:

  • A new CLI subcommand, flag, or output format → end-to-end test in tests/cli_binary.rs via assert_cmd.
  • A new public function in src/<module>.rs → unit test in tests/<module>_tests.rs.
  • A new bootstrap step (file copy, guard, no-symlink, command hook) → integration test in tests/bootstrap_tests.rs exercising it against a tempfile::TempDir.
  • A libgit2 worktree operation → integration test in tests/worktree_integration.rs using tests/common::init_repo().
  • A TUI state transition → state-machine test in tests/tui_app_tests.rs (ratatui-free).

Exceptions (narrow, must be argued in the PR description)

The bar to skip a test is "the change is observably untestable from the public surface". Concretely:

  • Pure formatting / typo fixes in user-facing strings → no test required if the string is incidental (a log line, a help blurb). If the string is asserted somewhere, update the assertion.
  • Dependency bumps without behaviour change → CI green is the test.
  • Comments-only changes → no test required.

Read the full file on GitHub · 170 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. 2mo ago First seen · 170 lines · 2,270 tokens per session scan A 5fb16865175c

Subscribe to this mod's changes

gwm-cli AGENTS.md is an instructions file published in the GitHub repository kbrdn1/gwm-cli (149 stars, last pushed today), licensed Apache-2.0. It adds 2,270 tokens to every session, about $0.0091 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.

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