What is ada-mcp-server copilot-instructions.md?

Project instructions for ada-mcp-server, a Python bridge between AI coding agents and the Ada Language Server. They describe the project’s architecture, technologies, folders, and language features such as definitions, references, symbols, and diagnostics.

Use them when developing or reviewing the ada-mcp-server project. They help locate the main components and understand how its Ada-language tools are organized.

They give an agent the context needed to work consistently in the repository. They also document how the MCP connection, language-server communication, and validation fit together.

How MDBrothers/ada-mcp-server configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to MDBrothers/ada-mcp-server. 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/MDBrothers/ada-mcp-server/main/.github/copilot-instructions.md

Clone the repo

git clone --depth 1 https://github.com/MDBrothers/ada-mcp-server

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/mdbrothers/ada-mcp-server/copilot-instructions/github.svg)](https://agentmods.dev/instructions/mdbrothers/ada-mcp-server/copilot-instructions)

Your own site

<a href="https://agentmods.dev/instructions/mdbrothers/ada-mcp-server/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/mdbrothers/ada-mcp-server/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/mdbrothers/ada-mcp-server/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/mdbrothers/ada-mcp-server/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,009 This file is loaded in full into every session.

When invoked 1,009 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.

Model	Per session	Once invoked
Fable 5.1	$0.01009	$0.01009
Opus 5.5	$0.00404	$0.00404
Sonnet 5.5	$0.00202	$0.00202
Haiku 4.5	$0.00101	$0.00101

Measured 2mo ago against content hash d7b2644b9725, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ada-mcp-server 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 2mo 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/copilot-instructions.md · 126 lines

How it starts

The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GitHub Copilot Instructions for Ada MCP Server

Project Overview

This is an MCP (Model Context Protocol) server that wraps the Ada Language Server (ALS) to provide semantic Ada language features to AI coding agents. It acts as a bridge between AI tools and the Ada Language Server via the LSP protocol.

Architecture

AI Agent (Copilot) <--MCP/JSON-RPC--> Ada MCP Server (Python) <--LSP/stdio--> Ada Language Server

Technology Stack

Language: Python 3.11+
Protocol: MCP (Model Context Protocol) for AI agent communication
Backend: Ada Language Server (ALS) via LSP
Async: Uses asyncio and anyio for async operations
Validation: Pydantic for data models

Project Structure

src/ada_mcp/ - Main package
- __main__.py - Entry point (python -m ada_mcp)
- server.py - MCP server setup and tool registration
- als/ - Ada Language Server communication
  - client.py - LSP client wrapper
  - process.py - ALS process management
  - types.py - LSP type definitions
- tools/ - MCP tool implementations
  - navigation.py - goto_definition, find_references, hover
  - symbols.py - document/workspace symbols
  - diagnostics.py - error/warning retrieval
  - project.py - project info, call hierarchy
  - refactoring.py - rename, completions
- utils/ - Utility modules
  - uri.py - File URI handling
  - position.py - Line/column conversions (1-based to 0-based)
  - cache.py - Response caching
  - errors.py - Custom exceptions

Coding Conventions

Python Style

Follow PEP 8 with line length of 100 characters
Use type hints for all function signatures
Use async/await for all I/O operations
Prefer dataclass or Pydantic models for structured data
Use logging module, not print statements

LSP Protocol Notes

LSP uses 0-based line and column numbers
MCP tools expose 1-based line and column numbers (user-friendly)
Always convert between them in the tools layer
File URIs must use file:// scheme

Read the full file on GitHub · 126 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.

2mo ago First seen · 126 lines · 1,009 tokens per session scan A d7b2644b9725

Subscribe to this mod's changes

ada-mcp-server copilot-instructions.md is an instructions file published in the GitHub repository MDBrothers/ada-mcp-server (1 stars, last pushed 9mo ago), licensed MIT. It adds 1,009 tokens to every session, about $0.0040 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.

ada-mcp-server copilot-instructions.md next to 6 instructions from other repositories
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ada-mcp-server: Instructions file for GitHub Copilot