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feat(agent,ai): add narrow subpath exports so clients skip the barrel

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A barrel forces Node to evaluate its whole graph: importing reduceLaneSnapshot
(1 file, 6 KB) through pi-agent-core's index evaluated 106 files, and mini's
server loaded 112 files to enumerate JSONL headers. Types are free, so this only
ever affected value imports.

pi-ai gains ./utils/* alongside the existing ./providers/* and ./api/*
wildcards. pi-agent-core gains ./harness/context, ./harness/env/nodejs,
./harness/runtime/reducer and ./harness/session, and ./session/testing becomes
./harness/session/testing so every export mirrors its source path. The barrel
and ./node keep their batteries-included semantics.

The session layer takes uuidv7 from @earendil-works/pi-ai/utils/uuid rather than
the pi-ai barrel, which is what let ./harness/session drop from 42 files to 19.
Two imports there were written `import { type Usage } from` - not a type-only
statement, so it emitted a runtime import of the barrel.

scripts/check-entry-graphs.mjs walks each declared entry's value-import graph and
enforces per-entry budgets and forbidden paths, so a stray `export *` cannot
silently undo this. It caught the two `import { type ... }` regressions above.

Measured with mini: server 112 files and 98 MB to 28 files and 69 MB, presentation
204 files and 125 MB to 99 files and 110 MB. The worker still loads the provider
graph, correctly.
This commit is contained in:
Mario Zechner 2026-08-26 22:02:31 +02:00
parent d09576def8
commit 5507d76ee8
17 changed files with 190 additions and 17 deletions
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3
package.json
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@ -15,12 +15,13 @@
"clean": "npm run clean --workspaces",
"build": "cd packages/tui && npm run build && cd ../telemetry && npm run build && cd ../ai && npm run build && cd ../agent && npm run build && cd ../session-backends/sqlite-node && npm run build && cd ../../protocol && npm run build && cd ../client && npm run build && cd ../server && npm run build && cd ../coding-agent && npm run build",
"build:offline": "cd packages/tui && npm run build && cd ../telemetry && npm run build && cd ../ai && npm run build:offline && cd ../agent && npm run build && cd ../session-backends/sqlite-node && npm run build && cd ../../protocol && npm run build && cd ../client && npm run build && cd ../server && npm run build && cd ../coding-agent && npm run build",
"check": "biome check --write --error-on-warnings . && npm run check:pinned-deps && npm run check:ts-imports && npm run check:shrinkwrap && npm run check:install-lock:coding-agent && tsgo --noEmit && npm run check:browser-smoke",
"check": "biome check --write --error-on-warnings . && npm run check:pinned-deps && npm run check:ts-imports && npm run check:entry-graphs && npm run check:shrinkwrap && npm run check:install-lock:coding-agent && tsgo --noEmit && npm run check:browser-smoke",
"check:browser-smoke": "node scripts/check-browser-smoke.mjs",
"check:pinned-deps": "node scripts/check-pinned-deps.mjs",
"check:shrinkwrap": "node scripts/generate-coding-agent-shrinkwrap.mjs --check",
"check:install-lock:coding-agent": "node scripts/generate-coding-agent-install-lock.mjs --check",
"check:ts-imports": "node scripts/check-ts-relative-imports.mjs",
"check:entry-graphs": "node scripts/check-entry-graphs.mjs",
"generate:models": "npm --prefix packages/ai run generate-models && npm --prefix packages/ai run generate-image-models",
"hydrate:model-data": "npm --prefix packages/ai run hydrate-model-data",
"check:model-data": "npm --prefix packages/ai run check:model-data",