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.
curl -O https://raw.githubusercontent.com/ThiagoGuislotti/copilot-instructions/main/.github/instructions/repository-operating-model.instructions.mdgit clone --depth 1 https://github.com/ThiagoGuislotti/copilot-instructionsWrote 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.
[](https://agentmods.dev/instructions/thiagoguislotti/copilot-instructions/repository-operating-model)<a href="https://agentmods.dev/instructions/thiagoguislotti/copilot-instructions/repository-operating-model"><img src="https://agentmods.dev/badge/instructions/thiagoguislotti/copilot-instructions/repository-operating-model.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02504 | $0.02504 |
| Opus 5 | $0.01252 | $0.01252 |
| Sonnet 5 | $0.00501 | $0.00501 |
| Haiku 4.5 | $0.00250 | $0.00250 |
Grade A, and why
copilot-instructions repository-operating-model.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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 212 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Operating Model
Purpose
- Centralize repository-specific operational rules so
AGENTS.mdandcopilot-instructions.mdstay focused on global behavior, routing, and precedence. - Centralize repository-specific operational rules so
AGENTS.mdandcopilot-instructions.mdstay focused on global behavior, routing, precedence, and mandatory planning. - Keep repo topology, build/test/run commands, style, release process, and domain instruction references in one canonical location.
Scope and References
- Repo-wide; subfolder
AGENTS.mdmay specialize. Direct prompts override. - Core global files remain:
AGENTS.mdcopilot-instructions.md
- Cross-cutting policies remain centralized:
instructions/authoritative-sources.instructions.mdinstructions/artifact-layout.instructions.md.github/governance/authoritative-source-map.json
- Planning lifecycle rules are centralized in
instructions/subagent-planning-workflow.instructions.mdandplanning/README.md. - Brainstorm/spec rules are centralized in
instructions/brainstorm-spec-workflow.instructions.mdandplanning/specs/README.md. - Super Agent lifecycle rules are centralized in
instructions/super-agent.instructions.md. - Worktree isolation rules are centralized in
instructions/worktree-isolation.instructions.md. - TDD and verification rules are centralized in
instructions/tdd-verification.instructions.md. - For GitHub Actions in external repositories, consume pinned shared scripts from
https://github.com/ThiagoGuislotti/copilot-instructionsinstead of copying scripts into target repositories. - Validate remote script integrity using
.github/governance/shared-script-checksums.manifest.json.
Repository Topology
- Monorepo of libraries, modules, and samples for robust .NET services using Clean Architecture and CQRS: mediator via
NetToolsKit.Mediator, EF Core, ASP.NET Core, and worker patterns. - Main layout:
src/librariesmodules/feature modules such as Authentication, Services, and Toolssamples/src/Rent.Service.*for Domain/Application/Infrastructure/Api/Worker sample structuretests/mirrors source modulesnative/benchmarks/.github/planning/versioned planning workspace withactive/andcompleted/planning/specs/versioned brainstorming/spec workspace withactive/andcompleted/
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.
- 6d ago First seen · 212 lines · 2,504 tokens per session scan A 123f3c930686
copilot-instructions repository-operating-model.instructions.md is an instructions file published in the GitHub repository ThiagoGuislotti/copilot-instructions (2 stars, last pushed 2mo ago), licensed MIT. It adds 2,504 tokens to every session, about $0.0125 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 2026-08-31.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.