117 lines
3.0 KiB
Markdown
117 lines
3.0 KiB
Markdown
# Checkpoint 5: Seriatim Input Module
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## Status
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This document describes planned work, not implemented behavior.
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## Goal
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Add the first real input source while keeping transcript-specific behavior
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isolated inside an input-stage module.
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This checkpoint should allow Seriatim minimal transcript JSON to become a
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generic `SourceDocument`.
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## Scope
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In scope:
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- `internal/modules/input/seriatim`;
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- parser for Seriatim minimal output JSON;
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- mapping into `SourceDocument` and `SourceUnit`;
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- source-document validation;
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- input adapter registry wiring;
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- fixtures and tests;
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- CLI/config path to select the input module if the CLI shell exists.
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Out of scope:
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- D&D extraction;
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- LLM extraction calls;
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- transcript-specific behavior in runner/core packages;
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- support for every possible Seriatim schema variant.
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## Proposed Stages
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### Seriatim Source Model
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Define module-local structs for the Seriatim minimal output schema.
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Expected external shape:
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- top-level `metadata`;
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- top-level `segments`;
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- segment `id`;
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- segment `start`;
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- segment `end`;
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- segment `speaker`;
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- segment `text`.
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Keep these structs in the Seriatim input module package.
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### Parse And Validate
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Implement parser and validation behavior.
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Validation should cover:
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- valid JSON;
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- required metadata fields;
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- required segment fields;
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- unique segment IDs;
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- non-empty segment text;
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- valid start/end values as appropriate.
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Prefer clear module-specific errors.
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### Map To SourceDocument
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Map Seriatim data into the generic source model:
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- segment `id` becomes `SourceUnit.ID`;
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- segment `text` becomes `SourceUnit.Text`;
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- unit kind should identify transcript-like units without requiring core
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packages to know transcript semantics;
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- `speaker`, `start`, and `end` become unit metadata;
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- Seriatim metadata becomes document metadata.
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The resulting `SourceDocument` should pass core source validation.
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### Registry And CLI Wiring
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Register the module under a stable input adapter key, likely `seriatim`.
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If CLI support exists, add provisional selection:
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```sh
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notarius extract ./transcript.json --input seriatim
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```
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The command may still use fake extractors until checkpoint 6.
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### Fixtures And Tests
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Add fixtures and tests for:
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- valid Seriatim minimal transcript;
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- malformed JSON;
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- missing metadata;
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- missing or duplicate segment IDs;
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- empty segment text;
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- source-reference compatibility with generated unit IDs.
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## Done Criteria
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- `go test ./...` passes.
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- Seriatim minimal transcript JSON maps into `SourceDocument`.
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- Transcript fields do not appear in core runner contracts.
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- The input module is selectable through the registry.
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- Tests prove transcript-specific assumptions are isolated to the input module.
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## Review Questions
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- Are segment, speaker, and timestamp assumptions contained inside the input module?
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- Are unit IDs stable and suitable for source references?
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- Does the input module preserve enough metadata for transcript-oriented output later?
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- Should the input module accept only Seriatim minimal output for now?
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