---
id: T05
parent: S01
milestone: M001
provides: []
requires: []
affects: []
key_files: ["README.md", "tests/fixtures/sample_transcript.json"]
key_decisions: ["Sample transcript uses 5 segments with realistic music production content (Serum FM synthesis, OTT, EQ) to exercise downstream LLM extraction pipeline"]
patterns_established: []
drill_down_paths: []
observability_surfaces: []
duration: ""
verification_result: "1. docker compose config validates without errors (exit 0). 2. sample_transcript.json parses with 5 segments and 106 words, all required fields present. 3. README content check: all 8 sections verified present (overview, architecture, Docker setup, Whisper setup, env vars, dev workflow, API endpoints, project structure)."
completed_at: 2026-03-29T22:00:39.153Z
blocker_discovered: false
---

# T05: Created comprehensive README.md with architecture diagram, setup instructions, and env var docs; created sample transcript JSON fixture with 5 segments and 106 words matching Whisper output format

> Created comprehensive README.md with architecture diagram, setup instructions, and env var docs; created sample transcript JSON fixture with 5 segments and 106 words matching Whisper output format

## What Happened
---
id: T05
parent: S01
milestone: M001
key_files:
  - README.md
  - tests/fixtures/sample_transcript.json
key_decisions:
  - Sample transcript uses 5 segments with realistic music production content (Serum FM synthesis, OTT, EQ) to exercise downstream LLM extraction pipeline
duration: ""
verification_result: passed
completed_at: 2026-03-29T22:00:39.153Z
blocker_discovered: false
---

# T05: Created comprehensive README.md with architecture diagram, setup instructions, and env var docs; created sample transcript JSON fixture with 5 segments and 106 words matching Whisper output format

**Created comprehensive README.md with architecture diagram, setup instructions, and env var docs; created sample transcript JSON fixture with 5 segments and 106 words matching Whisper output format**

## What Happened

Wrote README.md covering all required sections: project overview, ASCII architecture diagram showing desktop Whisper and Docker Compose services, quick start guide, full environment variable documentation for all vars from .env.example, development workflow for local dev, database migration commands, project structure tree, API endpoint reference, and XPLTD conventions. Created tests/fixtures/sample_transcript.json with 5 realistic segments containing word-level timestamps matching the Chrysopedia spec format — content uses music production terminology for downstream LLM extraction testing. All three verification checks passed: docker compose config validates, README covers all 8 required sections, sample JSON is structurally valid.

## Verification

1. docker compose config validates without errors (exit 0). 2. sample_transcript.json parses with 5 segments and 106 words, all required fields present. 3. README content check: all 8 sections verified present (overview, architecture, Docker setup, Whisper setup, env vars, dev workflow, API endpoints, project structure).

## Verification Evidence

| # | Command | Exit Code | Verdict | Duration |
|---|---------|-----------|---------|----------|
| 1 | `docker compose config > /dev/null 2>&1` | 0 | ✅ pass | 500ms |
| 2 | `python3 -c "import json; d=json.load(open('tests/fixtures/sample_transcript.json')); assert len(d['segments'])==5"` | 0 | ✅ pass | 100ms |
| 3 | `python3 -c "readme=open('README.md').read(); assert 'docker compose up -d' in readme"` | 0 | ✅ pass | 100ms |


## Deviations

None.

## Known Issues

None.

## Files Created/Modified

- `README.md`
- `tests/fixtures/sample_transcript.json`


## Deviations
None.

## Known Issues
None.
