Two parallel atomars in the kei-buddy phase-1 plan. Mirror each other's
architecture: trait + feature-gated backend modules + env-driven dispatch
+ wiremock tests for HTTP backends + subprocess-error test for local.
## kei-tts (text-to-speech)
LOC: 959 across 15 files (largest src/lib.rs 121).
Trait `TtsBackend` + 4 backends behind feature flags:
* elevenlabs — POST api.elevenlabs.io/v1/text-to-speech/{voice}/stream
* openai — POST api.openai.com/v1/audio/speech (tts-1, tts-1-hd)
* google — POST texttospeech.googleapis.com/v1/text:synthesize
(Wavenet voices, base64 audioContent)
* piper — local subprocess to piper-tts binary, raw PCM out
Default features: ["piper"]. all-backends feature gates the rest.
`from_env()` reads KEI_TTS_BACKEND (default piper). Returns Box<dyn TtsBackend>.
Tests: 9 passed (env routing + 3 wiremock backends + piper subprocess error).
## kei-stt (speech-to-text)
LOC: 935 across 13 files (largest whisper_local.rs 181).
Trait `SttBackend` + 3 backends:
* whisper-local — subprocess to `whisper` CLI / faster-whisper,
reads JSON output, parses segments
* deepgram — POST api.deepgram.com/v1/listen (Token auth header,
raw audio body, parses words → Segments)
* openai-whisper — POST api.openai.com/v1/audio/transcriptions
(multipart file + model=whisper-1 +
response_format=verbose_json)
Default features: ["whisper-local"]. all-backends gates the rest.
`from_env()` reads KEI_STT_BACKEND (default whisper-local).
Tests: 10 passed + 1 doc-test (env routing + 5 wiremock + 2 JSON parsers
+ 1 subprocess error + 1 auth-header check).
## Common architecture decisions
* `with_base_url(url)` constructor on each HTTP backend for wiremock
testability — same pattern as kei-llm-router and kei-notify-telegram.
* `tempfile` crate added to kei-stt for whisper-local audio scratch.
* `base64 = { version = "0.22", optional = true }` in kei-tts for
Google's base64-encoded audioContent.
## Verify-before-commit (RULE 0.13 §)
* cargo check -p kei-tts (default + all-backends): PASS
* cargo check -p kei-stt (default + all-backends): PASS
* cargo test -p kei-tts --features all-backends --lib: 9/0
* cargo test -p kei-stt --features all-backends --lib: 10/0
* cargo check --workspace: PASS
STATUS-TRUTH from both agents: shipped=functional, stubs=0,
behaviour-verified=yes.
## Follow-up (deferred, non-blocking)
* Real backend verification needs API keys for ElevenLabs / OpenAI /
Google / Deepgram and piper-tts binary + .onnx model on PATH.
* whisper-local language_detected always None — whisper CLI JSON
schema differs across versions, parse heuristic to be added.
* faster-whisper has different JSON schema from openai-whisper;
current parser covers openai-whisper convention only.
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|---|---|---|
| .. | ||
| _rust | ||
| templates | ||
| design-scrape.sh | ||
| figma-tokens.sh | ||
| frontend-inspect.sh | ||
| harden-base.sh | ||
| kei-ci-lint.sh | ||
| kei-docs-scaffold.sh | ||
| kei-doctor.sh | ||
| kei-sleep-queue.sh | ||
| kei-sleep-setup.sh | ||
| kei-sleep-sync.sh | ||
| live-preview.sh | ||
| log-ship.sh | ||
| MANIFEST.toml | ||
| metrics-scrape.sh | ||
| provision-hetzner.sh | ||
| provision-vultr.sh | ||
| README.md | ||
| screenshot-decode.sh | ||
| tomd.sh | ||
_primitives — first-class building blocks
_primitives/ holds standalone utilities that agents, hooks, and skills
(including /compose-solution) depend on. Unlike _blocks/ (behavioral
markdown) or _manifests/ (agent TOML), primitives are executable shell
programs installed at $HOME/.claude/agents/_primitives/ by install.sh.
Current primitives
| Primitive | Purpose | Invocation |
|---|---|---|
tomd.sh |
Universal non-native-format → markdown converter (PDF, DOCX, XLSX, PPTX, CSV, images, code). | ~/.claude/agents/_primitives/tomd.sh <file> |
tomd.sh is a first-class primitive. Universal non-native-format →
markdown converter with configurable cache directory
(KEISEI_TOMD_CACHE) and KeiSeiKit-style error tags ([tomd]).
Hook integration
hooks/tomd-preread.sh is a PreToolUse(Read) hook that auto-redirects
Claude to the converted markdown when a Read targets .docx / .doc / .xlsx / .pptx / .csv. Cached under $KEISEI_TOMD_CACHE (default
/tmp/keisei-tomd-cache).
/compose-solution discovery
Phase 3 prior-art sweep greps _primitives/ alongside _blocks/,
_manifests/, skills/, _bridges/, hooks/. If a user task involves
file-format parsing, the meta-composer surfaces tomd automatically —
reuse over rewrite (RULE "No Patching").