What is stash-mcp codebase.instructions.md?

Project instructions for the Stash MCP Server, a .NET service that lets AI assistants work with Atlassian Bitbucket Server repositories, pull requests, reviews, builds, and search.

Use them when changing the Stash MCP codebase, Bitbucket.Net dependency, tests, documentation, builds, or deployment files.

They keep work consistent with the repository layout, its Git submodule, build setup, Docker configuration, and CI workflows.

How diomonogatari/stash-mcp configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to diomonogatari/stash-mcp. 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/diomonogatari/stash-mcp/main/.github/instructions/codebase.instructions.md

Clone the repo

git clone --depth 1 https://github.com/diomonogatari/stash-mcp

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/diomonogatari/stash-mcp/codebase/github.svg)](https://agentmods.dev/instructions/diomonogatari/stash-mcp/codebase)

Your own site

<a href="https://agentmods.dev/instructions/diomonogatari/stash-mcp/codebase"><img src="https://agentmods.dev/badge/instructions/diomonogatari/stash-mcp/codebase/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/diomonogatari/stash-mcp/codebase"><img src="https://agentmods.dev/badge/instructions/diomonogatari/stash-mcp/codebase.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 600 This file is loaded in full into every session.

When invoked 600 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	$0.00600	$0.00600
Opus 5.5	$0.00240	$0.00240
Sonnet 5.5	$0.00120	$0.00120
Haiku 4.5	$0.00060	$0.00060

Measured 2mo ago against content hash 88f821ef8c06, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

stash-mcp codebase.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/instructions/codebase.instructions.md · 44 lines

How it starts

The opening of the file, as written. The whole thing — 44 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Stash MCP Server — Codebase Overview

What This Project Is

Stash MCP Server is a .NET 10.0 Model Context Protocol (MCP) server for Atlassian Bitbucket Server (Stash). It exposes tools that let AI assistants interact with repositories, pull requests, code reviews, builds, and search.

Repository Layout

stash-mcp/
├── src/StashMcpServer/          # MCP server application (Microsoft.NET.Sdk.Web)
├── tests/StashMcpServer.Tests/  # xUnit test project
├── lib/Bitbucket.Net/           # ⚠️ Git submodule — Bitbucket REST API client
├── docs/                        # Architecture and toolset documentation
├── .github/workflows/           # CI: build.yml + release.yml
├── Directory.Build.props        # Shared MSBuild properties
├── Directory.Packages.props     # Central Package Management (CPM)
└── Dockerfile                   # Multi-stage Docker build

Git Submodule — Bitbucket.Net

The Bitbucket REST API client lives in lib/Bitbucket.Net/ as a git submodule pointing to https://github.com/diomonogatari/Bitbucket.Net.git. We own both repositories.

Key rules

StashMcpServer references Bitbucket.Net via ProjectReference, not NuGet: <ProjectReference Include="..\..\lib\Bitbucket.Net\src\Bitbucket.Net\Bitbucket.Net.csproj" />
Bitbucket.Net manages its own package versions. It has a Directory.Packages.props that opts out of CPM (ManagePackageVersionsCentrally=false), so stash-mcp's CPM does not conflict.
Never add Bitbucket.Net packages to stash-mcp's Directory.Packages.props. Bitbucket.Net's dependencies (e.g., Flurl.Http) are declared in its own .csproj.

Cloning requires --recurse-submodules:

git clone --recurse-submodules https://github.com/diomonogatari/stash-mcp.git
# or, after a plain clone:
git submodule update --init --recursive

CI workflows use submodules: recursive on all actions/checkout@v4 steps.
Dockerfile copies submodule source in the build stage — both the .csproj (for restore layer caching) and the full source.

Read the full file on GitHub · 44 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 · 44 lines · 600 tokens per session scan A 88f821ef8c06

Subscribe to this mod's changes

stash-mcp codebase.instructions.md is an instructions file published in the GitHub repository diomonogatari/stash-mcp (4 stars, last pushed 5mo ago), licensed MIT. It adds 600 tokens to every session, about $0.0024 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.

bitbucket mcp-server mcp-servers modelcontextprotocol

stash-mcp codebase.instructions.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
stash-mcp codebase.instructions.mddiomonogatari/stash-mcp	Instructions file	4	5mo ago	MIT	A	600	GitHub Copilot
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

stash-mcp: Instructions file for GitHub Copilot