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feat: sqlite session storage (#6594)

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This PR:

- Adds retainedTail to compaction entries in the new agent harness so we don't have to walk up the tree for the 2000 tokens before compaction,
- Changes getPathToRoot to getPathToRootOrCompaction to only load until last compaction, as unnecessary to access all nodes where it is called,
- Adds a SQLite storage backend, in a separate packages/session-backend-sqlite, with a migration system and schemas as per on-site discussions: sessions to match session header messages (except for metadata, which I couldn't understand what it's used for or where it gets written, so I omitted it), session_entries for shared entry types as columns plus payload as a json for what remains, session_sequences to represent the append-only, serialized nature of the jsonl files, branch_entries to attribute nodes to branches (relationship one-to-many), and session_materialized with the session info (see /session in TUI) to act as a "cache" or quick-access for costs, message count, token info, labels, session name, and model-thinking-level config (e.g. for fast resume).
- This is compatible with the new agent harness Session abstraction.
This commit is contained in:
Cristina Poncela Cubeiro
2026-07-21 11:36:31 +02:00
committed by GitHub
parent 54fad505b9
commit 9e7582aa03
40 changed files with 2659 additions and 145 deletions
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package.json
+3 -2
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@@ -4,6 +4,7 @@
"type": "module",
"workspaces": [
"packages/*",
"packages/storage/*",
"packages/coding-agent/examples/extensions/with-deps",
"packages/coding-agent/examples/extensions/custom-provider-anthropic",
"packages/coding-agent/examples/extensions/custom-provider-gitlab-duo",
@@ -12,8 +13,8 @@
],
"scripts": {
"clean": "npm run clean --workspaces",
"build": "cd packages/tui && npm run build && cd ../ai && npm run build && cd ../agent && npm run build && cd ../coding-agent && npm run build && cd ../orchestrator && npm run build",
"build:offline": "cd packages/tui && npm run build && cd ../ai && npm run build:offline && cd ../agent && npm run build && cd ../coding-agent && npm run build && cd ../orchestrator && npm run build",
"build": "cd packages/tui && npm run build && cd ../ai && npm run build && cd ../agent && npm run build && cd ../storage/sqlite-node && npm run build && cd ../../coding-agent && npm run build && cd ../orchestrator && npm run build",
"build:offline": "cd packages/tui && npm run build && cd ../ai && npm run build:offline && cd ../agent && npm run build && cd ../storage/sqlite-node && npm run build && cd ../../coding-agent && npm run build && cd ../orchestrator && 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:browser-smoke": "node scripts/check-browser-smoke.mjs",
"check:pinned-deps": "node scripts/check-pinned-deps.mjs",