agent-plugins codeowners.instructions.md

Instructions for maintaining a CODEOWNERS file, which tells a code-hosting service which teams own particular files or directories. They apply to the awslabs/agent-plugins repository.

In plain words
What is it for?
Use them when editing .github/CODEOWNERS, especially to check team-only entries, alignment, alphabetical sections, administrator ownership, and the required final entry.
Why use it?
They help keep ownership rules in the required order and format so the repository can assign the right review teams.

Instructions file for GitHub Copilot

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/awslabs/agent-plugins/codeowners
Clone the repo
git clone --depth 1 https://github.com/awslabs/agent-plugins

Made for: GitHub Copilot.

Per session 295 This file is loaded in full into every session.
When invoked 295 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 $0.00295 $0.00295
Opus 5 $0.00148 $0.00148
Sonnet 5 $0.00059 $0.00059
Haiku 4.5 $0.00030 $0.00030

Measured yesterday against content hash 239249bd2d91, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agent-plugins codeowners.instructions.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 yesterday.

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.

.github/instructions/codeowners.instructions.md · 30 lines

What it actually says

CODEOWNERS file rules

Please verify this checklist to keep the .github/CODEOWNERS file following all five of these rules:

  1. ONLY teams are used (no users)
  2. Teams MUST be vertically aligned across all lines with spaces (no tabs)
  3. Each section, "## section", MUST be alphabetically sorted (keep file patterns in order)
  4. Admins or maintainers must be first (if both separated by one space) - others follow with two spaces
  5. The file MUST follow this regular expression ^.github/CODEOWNERS *@awslabs/agent-plugins-admins$

EXAMPLE:

README.md                  @awslabs/agent-plugins-admins @awslabs/agent-plugins-maintainers  @awslabs/otherteams

## Plugins (alphabetically listed)

plugins/a                  @awslabs/agent-plugins-maintainers  @awslabs/a-team
plugins/d                  @awslabs/agent-plugins-maintainers  @awslabs/a-d-group
plugins/z                  @awslabs/agent-plugins-maintainers  @awslabs/the-z-team

## File must end with CODEOWNERS file

.github/CODEOWNERS         @awslabs/agent-plugins-admins
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. yesterday First seen · 30 lines · 295 tokens per session scan A 239249bd2d91

Subscribe to this mod's changes

agent-plugins codeowners.instructions.md is an instructions file published in the GitHub repository awslabs/agent-plugins (876 stars, last pushed 5d ago), licensed Apache-2.0. It adds 295 tokens to every session, about $0.0015 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.