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              "tool": "analyze_chord",
              "message": "none of its 2 parameters has a description",
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              "severity": "warn",
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              "message": "none of its 2 parameters has a description",
              "fix": "Describe each one: format, units, an example, and what happens when it's left out."
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            {
              "rule": "TC11",
              "severity": "warn",
              "tool": "generate_voicing",
              "message": "none of its 6 parameters has a description",
              "fix": "Describe each one: format, units, an example, and what happens when it's left out."
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            {
              "rule": "TC11",
              "severity": "warn",
              "tool": "reharmonize",
              "message": "none of its 3 parameters has a description",
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            {
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              "readOnlyHint": true,
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          {
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              "destructiveHint": false,
              "idempotentHint": true,
              "openWorldHint": false,
              "readOnlyHint": true,
              "title": "Resolve Chord"
            }
          },
          {
            "name": "generate_voicing",
            "description": "Instrument-ready voicing in a style. Tension symbols voice by seat substitution (arranging practice, not stacking): 9/b9/#9 replace the root, #11/13/b13 replace the 5th, the 3rd and 7th are untouched guide tones. Pass voices: 5 to promote the implied 9 of an 11/13 chord; pass previousNotes for a voice-leading score.",
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              "idempotentHint": true,
              "openWorldHint": false,
              "readOnlyHint": true,
              "title": "Generate Voicing"
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          {
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              "idempotentHint": true,
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              "title": "Reharmonize Progression"
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            "inputSchema": {
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      "note": "Indexed from the official MCP registry: facts and our own checks, not reviewed, so no score, grade or rank.",
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      "source": "the official MCP registry",
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      "summary": "Deterministic music theory for agents: analyze, voice, reharmonize, conduct — computed, not guessed",
      "updatedAt": "2026-08-01T03:38:48Z",
      "url": "https://www.anchorterminal.com/tools/thiri-chord-intelligence",
      "vendor": "thiri.ai",
      "vendorUrl": "https://thiri.ai",
      "version": "0.5.2",
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  "markdown": "# THIRI Chord Intelligence\n\n\u003e Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/\n\n- Kind: MCP server, by thiri.ai (https://thiri.ai)\n- Category: Music generation (https://www.anchorterminal.com/categories/music-generation.md)\n- Listed because: It's published in the registry under thiri.ai, a namespace the registry only gives to whoever proves they control that domain.\n- What the official MCP registry says: Deterministic music theory for agents: analyze, voice, reharmonize, conduct — computed, not guessed\n\n## Facts\n\n- MCP registry: `ai.thiri/chord-intelligence` 0.5.2\n- Endpoint: https://mcp.thiri.ai/mcp (streamable HTTP)\n- Package: npm `@bluesprincemedia/thiri-mcp` (stdio)\n- Source: https://github.com/BluesPrince/thiri-mcp\n- Website: https://thiri.ai\n- npm downloads a week: 61\n- GitHub stars: 10\n- Registry entry updated: 2026-08-01\n\n## Tools\n\n- Tools it lists (5, about 749 tokens of context, `tools/list` without credentials over MCP 2025-11-25, checked 2026-10-04 22:20 UTC):\n  - `analyze_chord` (read-only): Parse a chord into root, quality, intervals, and (with a key) roman numeral + function.\n  - `resolve_chord` (read-only): Resolve a chord to spelled notes, frequencies, MIDI, and recommended scales.\n  - `generate_voicing` (read-only): Instrument-ready voicing in a style. Tension symbols voice by seat substitution (arranging practice, not stacking): 9/b9/#9 replace the root, #11/13/b13…\n  - `reharmonize` (read-only): Reharmonize a progression. Techniques: tritone_sub, ii_v_insertion, modal_interchange, diminished_passing, secondary_dominant, chain_of_dominants,…\n  - `conduct_band` (read-only): Arrange a 4-piece band from a natural-language prompt. Returns conductor tempo/groove, 4 lanes of note events, lead sheet, and base64 MIDI. Audio render…\n- How its tools read to an agent (0 errors, 5 warnings, 1 note, about 749 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score):\n  - warn TC11 analyze_chord: none of its 2 parameters has a description\n  - warn TC11 conduct_band: none of its 2 parameters has a description\n  - warn TC11 generate_voicing: none of its 6 parameters has a description\n  - warn TC11 reharmonize: none of its 3 parameters has a description\n  - warn TC11 resolve_chord: its one parameter, chord, has no description\n  - note TC24 server: 5 of 5 tools have no outputSchema\n\n- JSON: https://www.anchorterminal.com/api/v1/tools/thiri-chord-intelligence.json\n- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming\n",
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    "docs": "https://www.anchorterminal.com/docs/",
    "generatedAt": "2026-10-05",
    "license": "CC-BY-4.0",
    "method": "https://www.anchorterminal.com/benchmark/",
    "methodology": "0.3",
    "openapi": "https://www.anchorterminal.com/openapi.json",
    "preview": false,
    "run": "2026-10-01",
    "runLabel": "October 2026 research run"
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    "description": "THIRI Chord Intelligence, an MCP server by thiri.ai, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Deterministic music theory for agents: analyze, voice, reharmonize, conduct — computed, not guessed",
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      "not reviewed",
      "not ranked",
      "facts only"
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    "h1": "THIRI Chord Intelligence",
    "image": "https://www.anchorterminal.com/assets/og/indexed.png",
    "path": "/tools/thiri-chord-intelligence",
    "published": "",
    "section": "indexed",
    "title": "THIRI Chord Intelligence, indexed from the official MCP registry",
    "toc": null,
    "updated": "2026-10-05",
    "url": "https://www.anchorterminal.com/tools/thiri-chord-intelligence"
  },
  "tokens": {
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    "slim": 780
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}