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.
npx agentmods add instructions/spineeventengine/config/copilot-instructionsgit clone --depth 1 https://github.com/SpineEventEngine/configWhat 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 | $0.00471 | $0.00471 |
| Opus 5 | $0.00235 | $0.00235 |
| Sonnet 5 | $0.00094 | $0.00094 |
| Haiku 4.5 | $0.00047 | $0.00047 |
Grade A, and why
config copilot-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.
What it actually says
GitHub Copilot Instructions
Repository context
This repository is part of the Spine SDK organisation (~40 repos).
Universal agent instructions are in AGENTS.md at the
repository root — read it first.
If .agents/project.md exists, read it before reviewing. It provides the
language, architecture, role, and code review checklist for this specific repo.
Additional guidelines are in .agents/guidelines/ — see
.agents/guidelines/_TOC.md for the index.
Do not review
Never review gradlew or gradlew.bat in any repository, including config.
These files are provided by Gradle and are not edited manually.
If the current repository is config, review its files normally unless noted
above: they are authoritative there. In other repositories, the following files are managed by
the config submodule and must be reviewed in the config repository, not
here. In those consumer repositories, skip them without comment:
AGENTS.md,CLAUDE.md,CONTRIBUTING.md,CODE_OF_CONDUCT.md.agents/**(except.agents/project.md).claude/**,.idea/**,.junie/**.github/copilot-instructions.mdbuildSrc/**(exceptbuildSrc/src/main/kotlin/module.gradle.kts)gradle/,gradlew,gradlew.bat.codecov.yml,.gitignore,gradle.properties,lychee.toml.github/workflows/— unless the workflow was introduced by this repo
Universal rules
Do not suggest:
- Any git history operation —
git commit,git push,git tag,git rebase,git merge,git cherry-pick,gh pr merge, or any other command that writes to history — leave these to the developer. - Auto-updating dependency versions outside a dedicated update task.
- Feature flags, backwards-compatibility shims, or fallbacks for scenarios that cannot occur in the current codebase.
- Analytics, telemetry, or tracking code.
- Reflection or unsafe code without explicit approval.
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.
- yesterday First seen · 46 lines · 471 tokens per session scan A 689ba7df3c1e
config copilot-instructions.md is an instructions file published in the GitHub repository SpineEventEngine/config (2 stars, last pushed 2d ago), licensed Apache-2.0. It adds 471 tokens to every session, about $0.0024 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
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.
buildNext
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).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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).
spec-kit 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.
langchain 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.