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Organize imports and reorganize module-level code into canonical bands - #928

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Organize imports and reorganize module-level code into canonical bands#928
chughtapan wants to merge 5 commits into
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claude/codebase-readability-analysis-tmqj7s

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Summary

This PR applies a systematic file organization migration across the codebase, reorganizing imports and module-level declarations into canonical "bands" (logical sections) and converting arrow function helpers into hoisted function declarations.

Key Changes

  • Import sorting: Alphabetically sorted imports within each import group throughout the codebase, improving consistency and readability
  • Module band reorganization: Moved declarations into their canonical positions:
    • Band 2: imports
    • Band 3: type declarations, SCREAMING_CASE constants, error classes
    • Band 4: primary exports
    • Band 5: implementation (non-exported functions)
  • Arrow to function conversion: Converted module-level const f = (...) => ... helpers into function f(...) declarations, which hoist and improve code organization
  • Codemod scripts added:
    • arrow-to-function.mjs: Step 1 - converts arrow functions to declarations
    • reorder-bands.mjs: Step 2 - moves declarations into canonical bands and orders implementation by first call
    • hoist-module-docblock.mjs: Moves module docblocks above imports when needed

Notable Implementation Details

  • Changes affect ~150+ files across packages (protocol, server, client, testbed, etc.)
  • Type declarations and constants are now consistently positioned before implementation
  • Function declarations now properly hoist, improving code flow and reducing temporal dead zone issues
  • Import organization follows a consistent pattern: types first, then values, alphabetically within each group
  • No functional changes to runtime behavior; this is purely organizational

Files Modified

  • Core packages: @moltzap/protocol, @moltzap/server, @moltzap/client, @moltzap/testbed
  • Supporting packages: nanoclaw-channel, openclaw-channel
  • Build/script files: ESLint config, documentation generators, codemods

https://claude.ai/code/session_01HY7ipPDdGVENSPVe51UcJe

claude added 5 commits July 31, 2026 17:35
Top-down file order requires a helper to sit below its first caller. A
`const` arrow cannot: it stays in the temporal dead zone until evaluated,
so a call above it throws. Function declarations hoist, which makes the
placement legal.

Converts the 177 module-level, non-exported arrow helpers that carry no
type annotation and never reference `this`. Three are left as arrows: one
whose annotation contextually types its parameters, and two whose bodies
reference `this`.

Mechanical, via scripts/codemods/arrow-to-function.mjs. Edits are computed
as text ranges and applied back-to-front, so comments and formatting are
untouched; oxfmt normalizes the result.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HY7ipPDdGVENSPVe51UcJe
Files read top-down: imports, declarations (types, SCREAMING_CASE
constants, error classes), primary exports, implementation. Within the
implementation band, each helper sits below its first caller.

Only types (erased) and function declarations (hoisted) move. A file whose
`const`/`class` statements would change relative order carries
initialization-order risk that cannot be checked mechanically, so it is
reported rather than rewritten — 82 files, including every file over
~800 lines.

Three safeguards, each added after the codemod got it wrong:
- the rewrite asserts it is a permutation of the original statements
  before writing, so an unclassified statement kind cannot be dropped;
- blank-line grouping is carried per statement, so packed runs stay packed;
- a leading `@file` block is pinned above the body, since it documents the
  module rather than the statement it precedes.

53 files, 447 statements moved, net -2 lines.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HY7ipPDdGVENSPVe51UcJe
The six methods that owned the agent id → name map touched nothing else
on the service except the RPC sender, so they move to a collaborator that
carries its own Ref and takes the sender as its only dependency.

`fake-service` reached the map through `Reflect.get(this, "agentNamesRef")`
— a test double coupled to a private field. It now goes through the
cache's own `cache()` surface, so the seam is the collaborator's API
rather than the service's internals.

Verified: nx run-many -t build, -t lint, -t test all green (761 tests).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HY7ipPDdGVENSPVe51UcJe
Adds eslint-plugin-perfectionist, limited to axes where declaration order
is arbitrary: named imports and exports, heritage clauses, variable
declarations, array includes, sets, and maps. Autofixed across the tree.

Deliberately excluded, with the reason recorded beside the config:

- sort-imports / sort-exports — both treat a module's `@file` docblock as
  trivia belonging to the statement below it, so sorting hoists a statement
  over the block and strands the file's documentation between imports,
  which `jsdoc/require-file-overview` then rejects. `partitionByComment`
  fixes it for imports but not exports. Enabling these needs a one-time
  pass moving every docblock above all imports first.
- sort-modules, sort-classes — fight the band layout and the stepdown rule.
- sort-union-types, sort-enums — a union like `LeaseState` reads as a
  lifecycle; alphabetizing destroys it.
- sort-interfaces, sort-object-types — wire shapes whose field order flows
  into the generated protocol docs.
- sort-objects — 2586 sites, mixing arbitrary config with semantic ordering;
  not separable without per-site review.

Verified: nx run-many -t build, -t lint, -t test all green (761 tests).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HY7ipPDdGVENSPVe51UcJe
The earlier note blamed `@file` docblock stranding. That is real but
solvable — `partitionByComment: true` anchors every block, verified on the
barrels that failed before.

The actual blocker is an import cycle. `@moltzap/protocol` has
`conversation` <-> `task`, so import order decides module evaluation order
and is load-bearing: `task/tasks.ts` calls `conversationSchema()` at module
scope, which resolves only because `#conversation` is imported after
`#transport`. Alphabetizing moves it first and the call throws
`conversationSchema is not a function` at import time — 15 test files, in
protocol and server-core.

Import order is therefore not a meaning-free axis in this codebase, which
is the premise the whole sorting effort rested on. Breaking the cycle
(relocating `TaskId` / `TaskNotFoundError` to a module both halves can
depend on) is a protocol design change, not a lint change, so the rules
stay off and the reason is recorded where someone would try again.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HY7ipPDdGVENSPVe51UcJe
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