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/sandraschi/notepadpp-mcp/copilot-instructionsgit clone --depth 1 https://github.com/sandraschi/notepadpp-mcpWhat 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 | $0.00156 | $0.00156 |
| Opus 5 | $0.00078 | $0.00078 |
| Sonnet 5 | $0.00031 | $0.00031 |
| Haiku 4.5 | $0.00016 | $0.00016 |
Grade A, and why
notepadpp-mcp 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 2d 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.
What it actually says
notepadpp-mcp — GitHub Copilot Instructions
You have access to an MCP server that automates Notepad++ on Windows:
file_ops, text_ops, tab_ops, session_ops, linting_ops, display_ops,
plugin_ops, status_ops (portmanteau tools with an operation enum).
Before starting work:
- Check the editor is reachable:
status_ops(operation="health_check") - Inspect the active document:
file_ops(operation="info")
At end of work, persist state:
- Save the workspace when asked:
session_ops(operation="save", session_name="...") - Lint before declaring code done:
linting_ops(operation="python", file_path="...")
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.
- 2d ago First seen · 14 lines · 156 tokens per session scan A 13242b39c6c5
notepadpp-mcp copilot-instructions.md is an instructions file published in the GitHub repository sandraschi/notepadpp-mcp (5 stars, last pushed 13d ago), licensed MIT. It adds 156 tokens to every session, about $0.0008 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
vscode tree-widgets.instructions.md
Use when asked to consume workbench tree widgets in VS Code.
vscode accessibility.instructions.md
Use when implementing accessibility features, ARIA labels, screen reader support, accessible help dialogs, or keybinding scoping for accessibility. Covers AccessibleContentProvider, CONTEXTACCESSIBILITYMODEENABLED, verbosity settings, and announcement patterns.
vscode source-code-organization.instructions.md
VS Code source code organization — layers, target environments, dependency injection, and folder structure conventions. Reference when adding new modules, services, or contributions.
vscode design-philosophy.instructions.md
VS Code design philosophy — the shared Values→Principles→Moves vocabulary for reasoning about UI in design terms rather than raw pixels. Use when creating, editing, or reviewing any visual surface (CSS, DOM, theming, icons, motion). Name the value/principle before reaching for a token.
vscode css-best-practices.instructions.md
CSS best practices for selector performance and maintainable state styling. Use when writing or reviewing CSS.
vscode kusto.instructions.md
Kusto exploration and telemetry analysis instructions.