DiffCI

io.github.DiffCI/diffciVersion 0.3.43

Verification for AI coding agents: runs the tests and checks a change affects, with a receipt.

Status

Responds135 msNov 14, 2026, 14:37 UTCAnswered our handshake without sign-in.

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Data from the official MCP Registry, checked by run.zero. How we check

Streamable HTTP

https://diffci.com/mcp/v1Responds135 msNov 14, 2026, 14:37 UTC

No sign-in

claude mcp add --transport http diffci https://diffci.com/mcp/v1

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Settings > Connectors > Add custom connector
Name: diffci
Remote MCP server URL: https://diffci.com/mcp/v1

{
  "mcpServers": {
    "diffci": {
      "url": "https://diffci.com/mcp/v1"
    }
  }
}

code --add-mcp '{"name":"diffci","type":"http","url":"https://diffci.com/mcp/v1"}'

Streamable HTTP

npm: @diffci.com/diffci 0.3.43

Package only

claude mcp add diffci -- npx -y @diffci.com/diffci@0.3.43

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3 tools

Tools of DiffCI
	Description		Read-only	Idempotent	Open world
`diffci_interpret_report`Validate and summarize a DiffCI observation report, including selective or full mode, affected-test counts, fallbacks, non-interference evidence, and the conservative next action.	Validate and summarize a DiffCI observation report, including selective or full mode, affected-test counts, fallbacks, non-interference evidence, and the conservative next action.	No	Yes	Yes	No
`diffci_validation_plan`Plan change-aware CI validation, affected-test selection, test impact analysis, or GitHub Actions workflow checks. Returns a safe local DiffCI command without accessing the checkout or executing it.	Plan change-aware CI validation, affected-test selection, test impact analysis, or GitHub Actions workflow checks. Returns a safe local DiffCI command without accessing the checkout or executing it.	No	Yes	Yes	No
`diffci_verify_workflow_text`Perform a stateless preliminary safety check of GitHub Actions YAML: dedicated observer job, continue-on-error, dependency isolation, read-only permissions, and immutable DiffCI references.	Perform a stateless preliminary safety check of GitHub Actions YAML: dedicated observer job, continue-on-error, dependency isolation, read-only permissions, and immutable DiffCI references.	No	Yes	Yes	No

Registry status: Active
Published: Nov 14, 2026
Updated: Nov 14, 2026
Website: https://diffci.com/mcp-server⁠ (opens in a new tab)
Repository: https://github.com/DiffCI/core⁠ (opens in a new tab)
Categories (suggested): Developer tools SecuritySuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared