rosetta: Instructions file for GitHub Copilot

.github/instructions/changelog-discipline.instructions.md

rosetta changelog-discipline.instructions.md is an instructions file for GitHub Copilot from tikoci/rosetta. It costs 368 tokens per session, scanned A, original, MIT.

A rule for recording user-visible changes in a CHANGELOG.md file, which lists changes in each software release. It specifies where unreleased changes go and how release links must be updated.

In plain words
What is it for?
Use it after changing commands, tools, databases, installation, releases, or other externally visible behavior.
Why use it?
It prevents changes that affect users or operators from being left undocumented or shown with broken links.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file. Also seen: mentions CLAUDE.md.

This is tikoci/rosetta's own configuration. It tells GitHub Copilot how to work on rosetta 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 rosetta configures →

Reuse

Borrowing it

Nothing to install: this file belongs to tikoci/rosetta. 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/tikoci/rosetta/main/.github/instructions/changelog-discipline.instructions.md
Clone the repo
git clone --depth 1 https://github.com/tikoci/rosetta

Made for: GitHub Copilot.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for rosetta changelog-discipline.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tikoci/rosetta/changelog-discipline.svg)](https://agentmods.dev/instructions/tikoci/rosetta/changelog-discipline)
Your own site
<a href="https://agentmods.dev/instructions/tikoci/rosetta/changelog-discipline"><img src="https://agentmods.dev/badge/instructions/tikoci/rosetta/changelog-discipline.svg" alt="Measured on agentmods" height="20"></a>
Per session 368 This file is loaded in full into every session.
When invoked 368 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 $0.00368 $0.00368
Opus 5 $0.00184 $0.00184
Sonnet 5 $0.00074 $0.00074
Haiku 4.5 $0.00037 $0.00037

Measured 7d ago against content hash 10f4bfaf2578, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

rosetta changelog-discipline.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 7d 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.

.github/instructions/changelog-discipline.instructions.md · 14 lines

What it actually says

Changelog discipline

If a change alters behavior users or operators can notice — CLI flags, MCP tool shape, DB schema, install/update flow, release/CI behavior, documented invariants — add one bullet under CHANGELOG.md[Unreleased] in the same PR.

  • Use the smallest accurate section: Added, Changed, Fixed, Removed, Deprecated, or Security.
  • One bullet per behavior change. Do not log pure refactors, test churn, or CI-only auto-bumps with no external effect.
  • CHANGELOG.md captures what shipped. Put rationale in DESIGN.md and future work in BACKLOG.md.

When promoting [Unreleased] to a version heading for a release, also update the reference-style link definitions at the bottom of the file: add [<version>]: <repo>/compare/v<previous>...v<version> and update [Unreleased] to compare from compare/v<version>...HEAD. The headings are reference links, so a promotion without its definition renders as literal brackets and leaves [Unreleased] comparing from the previous release. No automated check catches this — the release gate only greps for the heading, and markdownlint's MD051 checks heading anchors, not undefined reference links. See MANUAL.md → "Version bumps are a manual step".

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. 7d ago First seen · 14 lines · 368 tokens per session scan A 10f4bfaf2578

Subscribe to this mod's changes

rosetta changelog-discipline.instructions.md is an instructions file published in the GitHub repository tikoci/rosetta (44 stars, last pushed today), licensed MIT. It adds 368 tokens to every session, about $0.0018 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.

Related

Other instructions, from other repositories