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GroupDocs.Comparison.Mcp AGENTS.md

Repository instructions for AI coding agents working on an MCP server for comparing documents. The server compares files, reports differences as structured data, and can create marked-up result files.

In plain words
What is it for?
Use them when developing, testing, documenting, or operating the document-comparison MCP server.
Why use it?
They explain the project’s purpose, available comparison operations, supported document types, and expected repository practices.

Instructions file for CodexOpenCode

1 7d ago A scan 1,356 tokens original MIT
View the source file groupdocs-comparison/GroupDocs.Comparison.Mcp
Install

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.

agentmods
npx agentmods add instructions/groupdocs-comparison/groupdocs.comparison.mcp/agents-md
Clone the repo
git clone --depth 1 https://github.com/groupdocs-comparison/GroupDocs.Comparison.Mcp

Made for: Codex, OpenCode.

Per session 1,356 This file is loaded in full into every session.
When invoked 1,356 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.01356 $0.01356
Opus 5 $0.00678 $0.00678
Sonnet 5 $0.00271 $0.00271
Haiku 4.5 $0.00136 $0.00136

Measured 2d ago against content hash aac9b8a99f73, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

GroupDocs.Comparison.Mcp AGENTS.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.

AGENTS.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Guide for AI coding agents

Brief orientation for AI coding agents (Claude Code, Copilot, Cursor, Aider, Amp, Codex) working in this repository.

What this repo is

A standalone MCP server for GroupDocs.Comparison for .NET — exposes document comparison operations as AI-callable tools via the Model Context Protocol.

Published to NuGet as GroupDocs.Comparison.Mcp with the McpServer package type, and to ghcr.io/groupdocs-comparison/comparison-net-mcp + docker.io/groupdocs/comparison-net-mcp as a container image.

MCP tools exposed

Tool Description
Compare Compare two documents (source vs target), produce a marked-up result file with the differences highlighted, and return a change-count summary plus a structured JSON list of the changes (type, page, changed fragment, source/target text, table cell, style changes). Supports PDF, Word, Excel, PowerPoint, ODT, RTF, TXT, HTML, and 30+ more formats; takes optional sourcePassword / targetPassword.
AnalyzeChanges Return the differences between two documents as structured data only — the same JSON change list as Compare, but without rendering or saving a result file. Cheaper than Compare; use for summarizing or reasoning about what changed. Optional sourcePassword / targetPassword.
GetDocumentInfo Inspect a single source document and return file type, page count, file size, and per-page dimensions as JSON. No comparison performed. Optional password for protected documents.

Compare and AnalyzeChanges accept sourceFile + targetFile as FileInput (resolved via IFileResolver), plus optional sourcePassword / targetPassword. GetDocumentInfo takes just file (FileInput) and an optional password.

Folder layout

src/                                           ← all projects + sln + Directory.Build.props
  GroupDocs.Comparison.Mcp/
    Program.cs                                 ← host bootstrap + stdio transport
    ComparisonLicenseManager.cs                ← applies GroupDocs.Total license
    Tools/
      CompareTool.cs                           ← [McpServerTool] — Compare
      AnalyzeChangesTool.cs                    ← [McpServerTool] — AnalyzeChanges
      GetDocumentInfoTool.cs                   ← [McpServerTool] — GetDocumentInfo
    .mcp/
      server.json                              ← NuGet.org reads this to generate mcp.json snippet
    GroupDocs.Comparison.Mcp.csproj            ← PackageType=McpServer + ToolCommandName
  GroupDocs.Comparison.Mcp.Tests/
  GroupDocs.Comparison.Mcp.sln
  Directory.Build.props
build/
  dependencies.props                           ← single source of truth for all versions
changelog/                                     ← one MD file per change (see changelog/README.md)
docker/
  Dockerfile                                   ← multi-stage, runtime on aspnet:10.0
  docker-compose.yml
.github/workflows/                             ← build_packages.yml, run_tests.yml, publish_prod.yml, publish_docker.yml

Read the full file on GitHub · 101 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.

  1. 2d ago First seen · 101 lines · 1,356 tokens per session scan A aac9b8a99f73

Subscribe to this mod's changes

GroupDocs.Comparison.Mcp AGENTS.md is an instructions file published in the GitHub repository groupdocs-comparison/GroupDocs.Comparison.Mcp (1 stars, last pushed 7d ago), licensed MIT. It adds 1,356 tokens to every session, about $0.0068 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.

Documentsai-agentsclaudecursordiffdocument-comparisondocument-processing
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