THIRI Chord Intelligence
NPM · @BLUESPRINCEMEDIA/THIRI-MCP · 2 COMPONENTS · SCANNED SEP 21
Deterministic music theory for agents: analyze, voice, reharmonize, conduct — computed, not guessed
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 95 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency32
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- License check failed: the license (PolyForm-Noncommercial-1.0.0) isn't a recognized OSI-approved license. See how to fix → Fail
- Actively maintained (last published 42 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability86
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 750 tokens (~107/item across 7 items; 5 tools + 2 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the THIRI Chord Intelligence MCP server?
THIRI Chord Intelligence runs locally as an npm package, launched with npx -y @bluesprincemedia/thiri-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @bluesprincemedia/thiri-mcp
claude mcp add ai-thiri-chord-intelligence -- npx -y @bluesprincemedia/thiri-mcp
{
"mcpServers": {
"ai-thiri-chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp"
]
}
}
} {
"servers": {
"ai-thiri-chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp"
]
}
}
} codex mcp add ai-thiri-chord-intelligence -- npx -y @bluesprincemedia/thiri-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"ai-thiri-chord-intelligence": {
"type": "local",
"command": [
"npx",
"-y",
"@bluesprincemedia/thiri-mcp"
],
"enabled": true
}
}
} openclaw mcp add ai-thiri-chord-intelligence --command npx --arg -y --arg @bluesprincemedia/thiri-mcp
mcp_servers:
ai-thiri-chord-intelligence:
command: "npx"
args: ["-y", "@bluesprincemedia/thiri-mcp"] {
"McpServers": {
"ai-thiri-chord-intelligence": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"@bluesprincemedia/thiri-mcp"
]
}
}
} assistant mcp add ai-thiri-chord-intelligence -t stdio -c npx -a -y @bluesprincemedia/thiri-mcp
{
"mcpServers": {
"ai-thiri-chord-intelligence": {
"command": "npx",
"args": [
"-y",
"@bluesprincemedia/thiri-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 21 Sept 26 0
- Stability: 0.97 → pass security
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 −2
- Stability: pass → 0.83 functional
- 15 Sept 26 0
- Stability: 0.97 → pass security
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 21 Sept 2026 · Analysed npm/@bluesprincemedia/thiri-mcp@0.5.2
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 95 packages
| Packages resolved | 95 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
analyze_chord ~100
Parse a chord symbol into its root, quality, intervals, extensions, and harmonic function. When a key is provided, returns the Roman numeral, scale degree, and whether the chord is diatonic.
| Name | Type | Req | Description |
|---|---|---|---|
| chord | string | yes | Chord symbol (e.g. 'Dm7', 'Cmaj7/E', 'G7#11') |
| key | string | – | Key center for functional analysis (e.g. 'C', 'Bb') |
No output schema declared.
No examples provided.
conduct_band ~102
Arrange a 4-piece band from a natural-language prompt. Returns conductor tempo/groove, 4 lanes of note events, lead sheet, and base64 MIDI. Browser/client synthesizes audio via Csound; use thiri-conductor-mcp locally to render WAV.
| Name | Type | Req | Description |
|---|---|---|---|
| durationSec | number | – | Optional target duration override |
| prompt | string | yes | Musical direction (e.g. '12-second neo-soul band in Eb, Rhodes + analog bass') |
No output schema declared.
No examples provided.
generate_voicing ~250
Generate instrument-ready voicings for a chord in a specified style. Pass previousNotes (or a previousVoicing object) from an earlier result to get a voiceLeadingScore for the transition. Styles: rootless, bill_evans, shell, triad, pad, guide-tones, guide-tone-1, guide-tone-2, both-guide-tones, drop-2, drop-3.
| Name | Type | Req | Description |
|---|---|---|---|
| chord | string | yes | Chord symbol (e.g. 'Dm7') |
| colorPreferences | object | – | Explicit color-tone overrides |
| density | number | – | Target voicing density / note count hint |
| keyContext | string | – | Key context for diatonic color hooks (e.g. 'C major') |
| octave | number | – | Base octave (default: 3) |
| previousNotes | array | – | Previous voicing notes for voice leading (e.g. ['E3', 'G3', 'Bb3', 'D4']) |
| previousVoicing | – | – | Prior generate_voicing JSON result for strict guide-tone line tracking |
| style | string | – | Voicing style (default: 'pad'). bill_evans is an alias of rootless. |
No output schema declared.
No examples provided.
reharmonize ~186
Reharmonize a chord progression using jazz techniques. Returns one alternative per applicable technique, each with the new progression, the changes, and a plain-English explanation. With technique 'auto' (default) it returns every technique that applies. Techniques: tritone_sub, ii_v_insertion, modal_interchange, diminished_passing, secondary_dominant, chain_of_dominants, coltrane_changes, backdoor. (modal_interchange and backdoor require a key.)
| Name | Type | Req | Description |
|---|---|---|---|
| key | string | – | Key center (e.g. 'C') — enables modal_interchange and backdoor |
| progression | array | yes | Chord symbols, one per bar (e.g. ['Cmaj7', 'Dm7', 'G7', 'Cmaj7']) |
| technique | string | – | Reharmonization technique (default: 'auto' = all applicable) |
No output schema declared.
No examples provided.
resolve_chord ~54
Resolve a chord symbol to spelled note names, frequencies in Hz, MIDI numbers, and recommended improvisation scales.
| Name | Type | Req | Description |
|---|---|---|---|
| chord | string | yes | Chord symbol (e.g. 'Cm7', 'F#dim7') |
No output schema declared.
No examples provided.
What is the THIRI Chord Intelligence MCP server?
THIRI Chord Intelligence is an MCP server listed in the public MCP registry as ai.thiri/chord-intelligence. Deterministic music theory for agents: analyze, voice, reharmonize, conduct, computed, not guessed. This page covers its npm package (@bluesprincemedia/thiri-mcp).
Is the THIRI Chord Intelligence MCP server safe to use?
THIRI Chord Intelligence scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 21 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the THIRI Chord Intelligence MCP server expose?
THIRI Chord Intelligence exposes 5 tools: analyze_chord, resolve_chord, generate_voicing, reharmonize, conduct_band. Their descriptions and schemas cost roughly 692 tokens of context every time the server is loaded.
Is the THIRI Chord Intelligence MCP server still maintained?
THIRI Chord Intelligence is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the THIRI Chord Intelligence MCP server under?
THIRI Chord Intelligence declares the PolyForm-Noncommercial-1.0.0 licence, which is not on the OSI-approved list. Read the terms before using it at work, and note this covers the source only, not the cost of any service it calls.