copilot-instructions: Instructions file for GitHub Copilot

.github/instructions/pr.instructions.md

copilot-instructions pr.instructions.md is an instructions file for GitHub Copilot from ThiagoGuislotti/copilot-instructions. It costs 623 tokens per session, scanned A, original, MIT.

A set of instructions for writing pull requests, which are proposed code changes submitted for review before being merged.

In plain words
What is it for?
Use it when preparing pull-request titles and descriptions, including issue references, applied instruction files, breaking changes, and validation details.
Why use it?
It gives contributors a consistent structure for explaining context, changes, risks, testing, documentation, and migration needs.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is ThiagoGuislotti/copilot-instructions's own configuration. It tells GitHub Copilot how to work on copilot-instructions 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 copilot-instructions configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ThiagoGuislotti/copilot-instructions. 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/ThiagoGuislotti/copilot-instructions/main/.github/instructions/pr.instructions.md
Clone the repo
git clone --depth 1 https://github.com/ThiagoGuislotti/copilot-instructions

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 copilot-instructions pr.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/thiagoguislotti/copilot-instructions/pr/github.svg)](https://agentmods.dev/instructions/thiagoguislotti/copilot-instructions/pr)
Your own site
<a href="https://agentmods.dev/instructions/thiagoguislotti/copilot-instructions/pr"><img src="https://agentmods.dev/badge/instructions/thiagoguislotti/copilot-instructions/pr/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for copilot-instructions pr.instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/thiagoguislotti/copilot-instructions/pr"><img src="https://agentmods.dev/badge/instructions/thiagoguislotti/copilot-instructions/pr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 623 This file is loaded in full into every session.
When invoked 623 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 $0.00623 $0.00623
Opus 5.5 $0.00249 $0.00249
Sonnet 5.5 $0.00125 $0.00125
Haiku 4.5 $0.00062 $0.00062

Measured 1mo ago against content hash 035ee3e76ce7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

copilot-instructions pr.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 1mo 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/pr.instructions.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pull Request Goals

Pull Request goals: clear title with concise scope; English language for title/description; reference related issues (e.g., Fixes #123); small, focused changes; align with repository guidelines.

Structure

Title [type: scope] short summary; Description with Context | Changes | Rationale | Risks | Testing | Docs | Breaking Changes | Migration; include Applied instructions section listing the instruction files actually followed.

Title Format

  • Use imperative mood
  • Keep <= 72 chars
  • Include area prefix when helpful (e.g., Core, Tools, Samples)
  • Avoid redundant words
  • Prefer clarity over cleverness
[fix: backend] Add exponential retry with jitter to HttpClientFactory
[feat: database] Add keyset pagination and missing indexes
[chore: infra] Harden Dockerfile and add readiness probe

Description Content

Context (what/why); Changes (what changed at code/infra level); Rationale (why this approach); Risks (impact/mitigations); Testing (how validated: unit/integration/E2E); Docs (README/CHANGELOG updated); Breaking Changes (yes/no and details); Migration (steps if any).

Context: users face transient 502/504
Changes: add Polly WaitAndRetry with jitter to HttpClientFactory
Rationale: improve resilience per backend.instructions.md
Risks: excessive retries mitigated by maxAttempts=3 and timeout
Testing: unit tests added + integration smoke
Docs: CHANGELOG updated
Breaking Changes: no
Migration: none

Applied Instructions

List paths like .github/instructions/backend.instructions.md; .github/instructions/dotnet-csharp.instructions.md; summarize how each was applied; include any deviations and justification.

Applied instructions:
- .github/instructions/backend.instructions.md
- .github/instructions/dotnet-csharp.instructions.md
- .github/instructions/ci-cd-devops.instructions.md
Applied: resilience (retry/jitter), CancellationToken, tests and pipeline gates
Deviations: none

Quality Checklist

  • Build and tests pass
  • Lints/formatting clean
  • Security checks considered
  • No secrets in diff
  • Performance implications reviewed
  • Consistent namespaces and folder structure
  • UTF-8 without BOM
  • No trailing blank line at EOF in modified files

Read the full file on GitHub · 69 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. 1mo ago First seen · 69 lines · 623 tokens per session scan A 035ee3e76ce7

Subscribe to this mod's changes

copilot-instructions pr.instructions.md is an instructions file published in the GitHub repository ThiagoGuislotti/copilot-instructions (2 stars, last pushed 3mo ago), licensed MIT. It adds 623 tokens to every session, about $0.0025 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 2026-08-31.

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