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Explains what makes a genre sound like itself — the harmonic, melodic, rhythmic, and timbral signatures of blues, jazz, pop, modal, folk, and others. Pure catalog skill. Use when a learner asks 'what makes blues blues' / 'what defines jazz harmony' / 'how do I write a country progression'.
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
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 | genre-essentials |
| description | Explains what makes a genre sound like itself — the harmonic, melodic, rhythmic, and timbral signatures of blues, jazz, pop, modal, folk, and others. Pure catalog skill. Use when a learner asks 'what makes blues blues' / 'what defines jazz harmony' / 'how do I write a country progression'. |
| triggers | ["what makes blues","what makes jazz","what makes country","what makes pop","what makes rock","what defines a genre","blues progression","jazz progression","country progression","modal sound","pop progression","folk chord","genre essentials"] |
| license | internal |
| compatibility | {"agent-framework":">=1.0.0-preview","microsoft-extensions-ai":">=10.5.1"} |
| metadata | {"authoring-style":"deterministic-catalog","origin":"drafted in skills-dev/ as Tier 4 catalog skill (skill-stewards 2026-05-05)","evidence-kinds":["catalog_lookup"]} |
Catalog skill. When a user asks what defines a genre's sound, match to one of the templates below. Each template lists the harmonic / melodic / rhythmic / timbral signatures so the answer covers more than just "play these chords".
Harmony: 12-bar blues form (I7 – I7 – I7 – I7 – IV7 – IV7 – I7 – I7 – V7 – IV7 – I7 – V7), all dominant-7 chords (no triads, no major-7). Quick-change variant adds IV7 in bar 2. Melody: blues scale (1, b3, 4, b5, 5, b7), heavy use of bent and slid notes, b3-and-3 ambiguity. Rhythm: shuffle / swing eighth notes, often a strong backbeat on 2 and 4. Timbral: tube-amp grit, slide guitar, harmonica, expressive vibrato.
Harmony: extended chords (9ths, 11ths, 13ths, alterations), tritone substitution, backdoor cadences, modal interchange. ii-V-I is the signature cadence (replace V-I with ii-V-I anywhere). Heavy use of secondary dominants (V7/ii, V7/V). Melody: chromatic approach tones, target chord tones on strong beats, "out" playing over chord changes. Rhythm: swung eighth notes (long-short triplet feel), syncopation, phrase ends on weak beats. Timbral: hollow-body / archtop guitar, walking bass, brushed drums, muted brass.
Harmony: 4-chord loops are king — axis (I-V-vi-IV) is the most-recorded progression of the 21st century. Diatonic only; minimal chromaticism. Borrowed iv from parallel minor adds emotional lift. Melody: hooks that fit the chord changes; minimal range, repeatable rhythms. Rhythm: 4/4, strong backbeat, quantized to 16ths. Timbral: clean tones, layered synths or guitars, tight low end.
Harmony: open-position chords (C, G, D, A, Em, Am, Dm), modal-mixture borrowed chords (bVII, bVI). Often capo-driven so the same shapes work in many keys. Melody: pentatonic, often vocal; melodic ornaments on phrase ends. Rhythm: 4/4 or 6/8 (waltz), strummed or fingerpicked. Timbral: acoustic guitar, banjo, mandolin, fiddle — natural / unprocessed.
Harmony: STATIC harmony — one chord (or two) for many bars. Vamps in Dorian, Phrygian, Lydian. Avoid V-I cadences (they imply tonal motion). Melody: emphasises modal characteristic intervals — Dorian's natural 6, Lydian's #4, Phrygian's b2. Rhythm: often spacious, less rhythmic urgency than tonal jazz. Timbral: open voicings (quartal stacks), pedal-tone bass.
Harmony: I-IV-V dominates, with vi as the relative-minor variation. Often quick changes between I, IV, V; dominant-7 versions of each are common. Melody: pentatonic with chromatic passing tones; pedal-steel-style bends. Rhythm: 2-feel ("boom-chick" alternating bass), shuffle in honky-tonk subgenre. Timbral: acoustic + Telecaster, pedal steel, fiddle, twangy reverb.
Harmony: I-bVII-IV ("mixolydian rock") and i-bIII-bVII (minor) common. Power chords (root + fifth, no third). Modal-mixture borrowing prevalent. Melody: minor pentatonic + blues scale; Phrygian for darker subgenres. Rhythm: 4/4 with strong backbeat; often syncopated guitar parts. Timbral: distorted electric guitar, big drums, prominent bass.
scale-info returns the scale notes; the canonical diatonic-set table is in the circle-of-fifths and key-identification skills' DiatonicSet outputs.key-identification.progression-mood (modal-interchange techniques).modes.