Borrowing it
Nothing to install: this file belongs to veerps57/memento. 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/veerps57/memento/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/veerps57/mementoWrote 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/veerps57/memento/copilot-instructions)<a href="https://agentmods.dev/instructions/veerps57/memento/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/veerps57/memento/copilot-instructions/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.
<a href="https://agentmods.dev/instructions/veerps57/memento/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/veerps57/memento/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00744 | $0.00744 |
| Opus 5.5 | $0.00298 | $0.00298 |
| Sonnet 5.5 | $0.00149 | $0.00149 |
| Haiku 4.5 | $0.00074 | $0.00074 |
Grade A, and why
memento 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 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.
How it starts
The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GitHub Copilot Instructions
This file is read automatically by GitHub Copilot in VS Code and other Copilot-enabled environments.
The canonical instruction set for all AI agents working on Memento lives in AGENTS.md at the repository root. This file exists only to point Copilot at it; everything below is a brief summary. Do not duplicate content here — read AGENTS.md directly.
Read this first
AGENTS.md— guiding principles, architectural rules, common pitfalls, verification commands.ARCHITECTURE.md— high-level architecture and links into the deeper docs.docs/adr/— every architectural decision and why it was made.
Path-specific guidance
When you edit files in these areas, the canonical reference is:
**/*.test.ts—AGENTS.md§ "Architectural rules" + § "Verification"; tests must use Vitest, mirror the source layout underpackages/<pkg>/test/, and keep the 90/90/90/90 coverage gate green.packages/core/src/storage/migrations/**— ADR-0001 and existing migrations under that directory; migrations are forward-only and must include matching tests underpackages/core/test/storage/migrations/.packages/core/src/commands/**— ADR-0003 andpackages/core/README.md; every command lands in the single registry and is projected to MCP and CLI by adapters.docs/**— generated reference docs underdocs/reference/are produced bypnpm docs:generate(do not hand-edit); architectural prose underdocs/architecture/and ADRs underdocs/adr/follow the templates already in those directories.
Reusable workflows
These live as concise checklists rather than executable prompt files:
- Add a command: define schemas in
@psraghuveer/memento-schema, register the command inpackages/core/src/commands/, add tests, runpnpm docs:generateto refreshdocs/reference/cli.mdanddocs/reference/mcp-tools.md. ADR-0003 is the contract. - Add a config key: add a
defineKeyentry topackages/schema/src/config-keys.ts, follow the JSDoc-style guidance at the top of that file, thenpnpm docs:generateto refreshdocs/reference/config-keys.md. - Add a migration: add the next-numbered migration under
packages/core/src/storage/migrations/with a matching test underpackages/core/test/storage/migrations/. Migrations are forward-only.
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.
- 1mo ago First seen · 43 lines · 744 tokens per session scan A 4af6cdc27ce4
memento copilot-instructions.md is an instructions file published in the GitHub repository veerps57/memento (24 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 744 tokens to every session, about $0.0030 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 2026-08-30.
Other instructions, from other repositories
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).
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.