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fix: eliminate 37 'any' types with proper interfaces - #54

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fix/eliminate-any-types
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fix: eliminate 37 'any' types with proper interfaces#54
TerminalGravity wants to merge 2 commits into
mainfrom
fix/eliminate-any-types

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@TerminalGravity

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What

Replaces 37 any type annotations across 10 files with proper TypeScript interfaces.

Why

Type safety in the core lib layer prevents runtime bugs and makes the codebase more maintainable. These weren't just any suppressions — each one got a real type.

Changes

  • New interfaces: SessionRecord, ContentBlock, FeatureExtractor, SearchResult, TimelineRecord, JsonRecord, OpenApiSpec
  • Typed YAML parsing in config.ts with Partial<PreflightConfig>
  • Typed JSONL records in session-parser.ts and estimate-cost.ts
  • Typed API responses for OpenAI embeddings
  • Typed Xenova pipeline with narrowed FeatureExtractor interface
  • Proper error narrowing in git-extractor (unknown → typed cast)

Impact

Metric Before After Change
no-explicit-any warnings 47 10 -79%
Total lint warnings 74 37 -50%

Remaining any: playwright dynamic import (intentional), generic JSON state (typed alias).

Build clean, all 43 tests pass.

ESLint 10 uses util.styleText which was added in Node 20.
This has been failing the Node 18 CI check on every PR, blocking
all merges (28 open PRs affected).

- CI matrix: [18, 20] → [20, 22]
- engines: >=18 → >=20
- Add SessionRecord, ContentBlock, FeatureExtractor, SearchResult,
  TimelineRecord, JsonRecord, and OpenApiSpec interfaces
- Type YAML config parsing with Partial<PreflightConfig>
- Type JSONL session records instead of raw JSON.parse → any
- Type OpenAI embedding API responses
- Type Xenova pipeline with narrowed FeatureExtractor interface
- Cast git execSync errors properly (unknown → typed)
- Type test result JSON in clarify-intent

Reduces no-explicit-any warnings from 47 → 10 (79% reduction).
Total lint warnings from 74 → 37 (50% reduction).
Remaining any: playwright dynamic import (intentional), generic JSON state.

Build clean, all 43 tests pass.

@TerminalGravity TerminalGravity left a comment

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Nice cleanup — 79% reduction in any types is solid. The new interfaces (SessionRecord, ContentBlock, etc.) look well-scoped. One thought: the FeatureExtractor type for Xenova might break if they change their pipeline API — worth a comment noting it's pinned to their current shape. Otherwise this is ready to go once CI unblocks.

@TerminalGravity

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Closing — superseded by newer PRs.

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