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Lists the seven modes of the major scale (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian) with their scale-degree formulas and characteristic sound. Pure catalog — same fixed pedagogy whether the user asks for the whole list or a single mode.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Post-merge intent-vs-delivery evaluator. Resolves the most recent squash-merged PR, captures its stated intent (title + Summary), diffs it against what actually landed, runs /octo:review for specialist commentary, scans Codex bot comments (P0/P1 degrade the grade), computes a high/medium/low alignment score, and writes a structured grade to state/quality/pr-grades/<merge-sha>.json. Closes the "agent declared done, nobody checked the goal" loop.
Run one bounded supervised autonomous cycle on the Guitar Alchemist repo. Picks the smallest unchecked roadmap slice inside allow_edit, implements it, runs the oracle, emits cycle evidence, and stops. Refuses to run unless dev-process-overseer reports loop-eligible and the preflight passes. Use when asked to "run one supervised loop", "advance the roadmap autonomously", or "do one cycle and stop".
Rebuild the OPTIC-K voicing index (state/voicings/optick.index). Invoke when schema hash bumps, tag enrichment changes, new chord qualities are added, or the leak-test / invariant-coverage tools flag regressions. Mandatory precondition: stop any process that has the index mmap-locked — GaApi and GaMcpServer both hold the file open at runtime, and the write step WILL fail with IOException otherwise.
Generalized Cherny-style autonomous improvement loop. Reads a domain-scoped baseline.json + oracle script, runs the oracle, picks the worst-scoring item, proposes a fix, validates rollback safety, commits if metric improved AND roundtrip passes. Use for chatbot-qa, embeddings, voicing-analysis, or any other domain that has a baseline + oracle. Refuses to run if killswitch present, governance halt active, or scope_boundary violated.
End-to-end autonomous (AFK) harness that develops AND QAs the GA chatbot. Orchestrates the existing Level-3 /auto-optimize dev loop + the semantic /ga-chatbot-qa-panel judge workflow, instruments every step to a dashboard the human can watch, and enforces branch-only / never-merge safety. Use to run unattended chatbot-quality improvement with full human visibility. Refuses to run if the backend is down, a killswitch/halt marker is present, or scope_boundary is violated.
Turns raw Sentrux structural-quality metrics (quality_signal, cycle count, coverage) into a ranked list of actionable refactor recommendations with starter sketches. Pulls live data from sentrux MCP tools, optionally cross-references AI annotations (@ai:business-value, @ai:smell) and the latest /test-plan output, then writes 5-10 prescriptive bullets to state/quality/sentrux-next-steps/<date-Z>.md so the Sentrux dashboard tab can render them. PROPOSES — never auto-refactors; the human picks which recommendation to take.
| name | modes |
| description | Lists the seven modes of the major scale (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian) with their scale-degree formulas and characteristic sound. Pure catalog — same fixed pedagogy whether the user asks for the whole list or a single mode. |
| triggers | ["modes of","diatonic modes","major scale modes","seven modes","what are the modes","list the modes","modal harmony","modal cadence","characteristic note","characteristic interval","ionian","dorian","phrygian","lydian","mixolydian","aeolian","locrian"] |
| license | internal |
| compatibility | {"agent-framework":">=1.0.0-preview","microsoft-extensions-ai":">=10.5.1"} |
| metadata | {"authoring-style":"deterministic-catalog","origin":"ported from Common/GA.Business.ML/Agents/Skills/ModesSkill.cs — third pure-catalog SKILL.md, joins beginner-chords and progression-mood","evidence-kinds":["catalog_lookup"]} |
Reproduce the catalog below verbatim when the user asks for the modes / the diatonic modes / the modes of the major scale. When the user asks about a single mode (e.g. "what is Lydian?", "explain Phrygian"), pull just that row from the table and lead with it before optionally offering the full list.
The major scale has 7 modes. Each starts on a successive degree of the parent scale, rotating the same step pattern:
Ionian formula:
W-W-H-W-W-W-H(W = whole step, H = half step)
| # | Mode | Degrees | Characteristic note | Modal cadence | Character |
|---|---|---|---|---|---|
| 1 | Ionian | 1 2 3 4 5 6 7 | — (parent scale) | V → I (authentic) | Bright, the major scale itself |
| 2 | Dorian | 1 2 b3 4 5 6 b7 | natural 6 | i — IV — i (Dorian vamp; So What, Scarborough Fair) | Minor with raised 6th — jazz/folk staple |
| 3 | Phrygian | 1 b2 b3 4 5 b6 b7 | b2 | bII → i (Spanish cadence) | Dark minor with flat 2 — Spanish/flamenco |
| 4 | Lydian | 1 2 3 #4 5 6 7 | #4 | I — II — I (Lydian II vamp; the Simpsons theme) | Major with raised 4th — floating, dreamy |
| 5 | Mixolydian | 1 2 3 4 5 6 b7 | b7 | I — bVII — IV — I (rock anthem) | Major with flat 7 — bluesy/rock |
| 6 | Aeolian | 1 2 b3 4 5 b6 b7 | b6 | i — bVI — bVII — i | Natural minor |
| 7 | Locrian | 1 b2 b3 4 b5 b6 b7 | b5 (tritone w/ root) | rare; i°7 vamps with bII colour | Half-diminished — rare as a tonic |
The characteristic note is the one degree that makes the mode unique against its parallel major/minor — emphasise it in melodies and chord voicings to make the mode audible. The modal cadence column gives a vamp or progression that establishes the mode without falling back to V→I (which would imply tonal motion away from the mode).
"I Don't Particularly Like Modes A Lot" — Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian.
When the user asks about one mode specifically, lead with: "<Mode> is mode <n> of the major scale: degrees \<formula> — <character note>." Then optionally offer to compare with neighbouring modes (e.g. Dorian vs Aeolian for "minor flavour").
These are hard constraints. Do NOT answer queries in these categories from this catalog alone.
scale-info skill or the broader LLM agent path. Do NOT output specific-key note lists from this catalog alone.Common/GA.Business.ML/Agents/Skills/ModesSkill.cs (regex-driven, kept as deterministic fast path)Tests/Common/GA.Business.ML.Tests/Unit/ModesSkillTests.cs