About DiffCI
DiffCI is a change-aware test verification tool for coding agents and development teams. It selects tests affected by code changes, falls back to full verification when uncertain, and offers paired runtime evaluation plus MCP interfaces for guidance or local-checkout work.
Key features
- 01Analyze changes and select affected tests
- 02Fall back to full verification when uncertain
- 03Bind verification results to snapshots
- 04Compare full and selected test runtimes
- 05Check conflicts in supplied change specifications
Use cases
- 01Verify code changes produced by an agent
- 02Run change-aware tests locally or in CI
- 03Evaluate selected-test runtime against full tests
- 04Check whether specifications target the same item
MCP support
DiffCI provides a stateless, read-only HTTPS MCP endpoint for validation guidance, plus a stdio MCP server for inspecting a local checkout or running tests.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://diffci.com/mcpclaude mcp add --transport http adityankale190895-diffci https://diffci.com/mcp{"mcpServers":{"adityankale190895-diffci":{"type":"http","url":"https://diffci.com/mcp"}}}Open in Cursor{"servers":{"adityankale190895-diffci":{"type":"http","url":"https://diffci.com/mcp"}}}Open in VS Code{"mcpServers":{"adityankale190895-diffci":{"type":"http","url":"https://diffci.com/mcp"}}}{"mcpServers":{"adityankale190895-diffci":{"serverUrl":"https://diffci.com/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
3| Parameter | Type | Required | Description |
|---|---|---|---|
| repo | string | No | Optional local repository path to pass as a single --repo argument. |
| action | enum | No | Validation action. Defaults to check.check | observe | init | verify-workflow |
| platform | enum | No | Shell used only to render the display command. Defaults to posix.posix | powershell |
Details
The maintainer has not added details yet. Check the README in the repository.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.