git-ai AGENTS.md

Repository instructions for git-ai-project/git-ai, including strict rules for Git event processing, performance, testing, formatting, and snapshot files.

In plain words
What is it for?
Use them when modifying the project, choosing build and test commands, changing Git processing, or updating Insta snapshot files.
Why use it?
They help coding agents avoid changes that could slow the latency-sensitive event pipeline or violate project rules.

Instructions file for CodexOpenCode

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/git-ai-project/git-ai/agents-md
Clone the repo
git clone --depth 1 https://github.com/git-ai-project/git-ai

Made for: Codex, OpenCode.

Per session 4,559 This file is loaded in full into every session.
When invoked 4,559 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 $0.04559 $0.04559
Opus 5 $0.02279 $0.02279
Sonnet 5 $0.00912 $0.00912
Haiku 4.5 $0.00456 $0.00456

Measured 2d ago against content hash ce8e337ce010, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

git-ai 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 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.

AGENTS.md · 249 lines

How it starts

The opening of the file, as written. The whole thing — 249 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Non-Negotiable Rules

These are hard constraints. Violating any of them will get a PR rejected outright.

  1. All Git integration/processing is trace2-driven -- we do NOT wrap git. All git command processing is based on trace2, so EVERYTHING we do must be fully async. As a result, we cannot rely on repo/git state at processing time being reflective of the state whenever the given operation actually occurred. We have a highly latency-sensitive trace2 ingestion flow that gathers/estimates the minimal possible state and orders events for later async processing.

  2. No new work on the critical ingestion path. You CANNOT add git spawns, git object lookups, ref checks, etc. in the critical ingestion path of the daemon. It is EXTREMELY latency-sensitive -- even additional file reads have meaningful overhead on this path, which is sensitive to sub-millisecond latency increases.

  3. No non-constant-time git work anywhere. You CANNOT add git spawns, git object lookups, ref checks, etc. that are not constant-time (e.g., must be O(2)/O(3), not O(n)). You cannot have any operation that calls git per commit, per file, per object, or per ref -- that is not constant time. You can still call git outside of latency-sensitive paths, but instead of calling it once per item, find a constant-time alternative: a plumbing command, a command that accepts batched inputs, etc., so you avoid the massive overhead of N process spawns. Rule of thumb: if you're calling git or looking up objects/refs "for each <thing>," you're doing it wrong.

  4. Unbounded git spawns are an automatic rejection. Changes/PRs with unbounded git spawns will NOT be accepted.

  5. Reuse existing code. This is a large codebase. For nearly any operation you need, there is almost certainly a helper function already available and tested. Reuse code as much as practical -- it also keeps diffs small. PRs that fail to reuse existing code where applicable will be rejected immediately.

  6. Follow STRICT TDD. PRs that are not clearly TDD-driven with high-quality TestRepo-based tests will be rejected immediately.

Read the full file on GitHub · 249 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 · 249 lines · 4,559 tokens per session scan A ce8e337ce010

Subscribe to this mod's changes

git-ai AGENTS.md is an instructions file published in the GitHub repository git-ai-project/git-ai (2,525 stars, last pushed today), licensed Apache-2.0. It adds 4,559 tokens to every session, about $0.0228 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.