[Ostico]

Summary

POST /api/memory/remember never read the request type: every row got the type inferType() guessed from the content, which is fact unless the text contains a hint word such as "prefer" or "decided". The MCP memory_store tool, the SDK remember() helper and the OpenClaw, OpenCode and Pi integrations all send type, and it was dropped without an error. On one workspace, 20,950 of 28,478 memories are fact, including rows the caller had explicitly stored as decision or daily-log.

The route now stores the requested type when one is given and infers it only when none is.

Changes

• platform/daemon/src/routes/memory-routes.ts
  • The remember body accepts type. A non-empty string is trimmed and stored as is. undefined or null falls back to inferType(), as before. Any other value (a number, an empty or blank string) returns 400 type must be a non-empty string, the same rule and message the memory modify path already applies to type.
  • The requested type applies to the single-row path and to every chunk of oversized content. /api/hook/remember forwards to this route, so it gets the same behavior.
  • The type is free-form, like the modify path: the daemon already stores types outside MEMORY_TYPES (inferType() returns issue, rule and learning), so restricting it to that list would reject values the daemon writes itself.
  • The type check runs before the agent is registered, so a rejected request writes nothing.
• platform/daemon/src/mutation-api.test.ts: tests for the requested type overriding inference, trimming, undefined/null still inferring, the structured-body path, a dedupe hit keeping the stored type, invalid values returning 400 without writing a row, and the type reaching every chunk.
• platform/daemon/src/routes/utils.ts: parseMemoryType is the one parser for a requested type, used by remember and by modify (PATCH /api/memory/:id and the batch modify). It keeps the rule above and also rejects a type longer than 64 characters (MAX_MEMORY_TYPE_CHARS) with 400 type must be at most 64 characters. Before, neither path had a length limit. The longest type in my workspace is 14 characters (recommendation).
• platform/daemon/src/mutation-api.test.ts: a 64-character type is stored and a 65-character one returns 400 without writing a row, on remember and on PATCH.
• web/docs/src/content/docs/api/memory/write-lifecycle.md: the remember request body now shows type, with how it is validated and when it is inferred; the PATCH section states the same limit.
• web/docs/src/content/docs/memory.md: type inference is described as the fallback when the request gives no type.
• scripts/event-loop-contract-baseline.json, docs/event-loop-contract-audit.md and the siteToken strings in memory-routes.ts: line references refreshed after the inserted lines (again after the type parser); the legacy marker count holds at 144.

Type

• feat — new user-facing feature (bumps minor)
• fix — bug fix
• refactor — restructure without behavior change
• chore — build, deps, config, docs
• perf — performance improvement
• test — test coverage

Packages affected

• @signet/core
• @signet/daemon
• @signet/cli / dashboard
• @signet/sdk
• @signet/connector-*
• @signet/web
• predictor
• Other:

Screenshots

N/A, no UI change.

Migration Notes (if applicable)

N/A, no migration. Existing rows keep their inferred type.

Testing

• bun test passes
• bun run typecheck passes
• bun run lint passes
• Tested against running daemon
• N/A

Done locally:

• mutation-api, memory-capture-admission, memory-routes-curator, internal-fetch, daemon-auth-guard-colocation and analytics tests: 116/116 pass. Against the route on main, six of the seven new tests fail; the one that passes checks the unchanged inference fallback.
• @signet/daemon typecheck, Biome on the changed files, comments:check, the production comment ratchet and audit-event-loop-contract tests pass.
• After the type length limit (bbcec10b6): mutation-api 41/41; the same six suites 104/104; the three new tests fail against the previous head. comments:check, audit-event-loop-contract (24/24), Biome on the changed files and the pre-commit typecheck pass.

Not done: the full workspace bun test and a run against a live daemon.

AI disclosure

• No AI tools were used in this PR
• AI tools were used (see Assisted-by tags in commits)

🤖 Generated with Claude Code

Notes

• When the content deduplicates to an existing memory, the existing row is returned with its stored type; the requested type does not overwrite it. That matches how the route already treats other fields on a dedupe hit, and a test pins it.
• /api/hook/remember forwards its body unchanged, so a hook caller that sends type now has it stored, and an invalid type gets the 400, the same way an invalid tags already does on that path. RememberRequest does not declare type, so the bundled harnesses do not send it.
• The type is stored verbatim apart from trimming; there is no case folding, so Decision and decision stay different types.
• The 64-character limit on type is my proposal, not a value taken from a spec. The repository rules ask to bound untrusted input at the boundary, and before this change type had no bound on either remember or modify. Remember has no request size limit either: oversized content is chunked, not rejected, so a very long type would be copied onto every chunk and into every prompt that lists memories. 64 leaves a wide margin over the longest type in a real workspace (14 characters). Maintainers may prefer another value, or may want to settle it together with the list of allowed types (see Decide the list of allowed memory types #2165).
• type remains free text, with no list of allowed values. MEMORY_TYPES in @signet/core cannot be used as that list today: the daemon itself writes rule, issue and learning, which are not in it.

Summary by CodeRabbit

• New Features
  • Memory-saving requests can include an explicit type, retained for single and chunked content. If omitted or set to null, the type is inferred as before; oversized content is inferred separately for each chunk.
• Bug Fixes
  • Supplied types are trimmed and must be non-blank strings of at most 64 characters. Invalid types are rejected with a 400 response for both saving and updating memories. Duplicate saves continue to return the existing memory’s type.
• Documentation
  • Clarified how memory types are supplied, inferred, and validated.

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Walkthrough

The /api/memory/remember route now accepts and validates an optional memory type. Valid supplied types apply to single and chunked saves; omitted or null types are inferred. Tests, documentation, and event-loop site references are updated.

Changes: Remember Memory Type

Layer / File(s)	Summary
Validate and apply requested types platform/daemon/src/routes/memory-routes.ts, platform/daemon/src/routes/utils.ts	The route validates supplied types and uses valid types for single and chunked saves. The PATCH validator also rejects blank or over-64-character types.
Test and document type handling platform/daemon/src/mutation-api.test.ts, web/docs/src/content/docs/api/memory/write-lifecycle.md, web/docs/src/content/docs/memory.md	Tests cover persistence, inference, trimming, deduplication, invalid values, length limits, and chunked content. The documentation describes the optional type rules for POST and PATCH.
Update event-loop site references platform/daemon/src/routes/memory-routes.ts, platform/daemon/src/routes/utils.ts, scripts/event-loop-contract-baseline.json, docs/event-loop-contract-audit.md	Route siteToken values and inventory line references are updated. Listed APIs, callbacks, snippets, and categories remain unchanged.

Priority: Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix

Sequence Diagram(s)

sequenceDiagram
  participant Client
  participant RememberRoute
  participant TypeValidator
  participant MemoryStore
  Client->>RememberRoute: Send remember request with optional type
  RememberRoute->>TypeValidator: Validate and normalize supplied type
  TypeValidator-->>RememberRoute: Return normalized type or validation error
  RememberRoute->>MemoryStore: Save using supplied or inferred type
  MemoryStore-->>RememberRoute: Return saved memory
  RememberRoute-->>Client: Return memory response

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Possibly related issues

• Decide the list of allowed memory types #2165: The PR implements requested type storage and validation. The issue’s decision between free text and a closed type list remains unresolved.
• [Feature]: Signet SDK: an embeddable memory API, and one client for Signet's own surfaces #2099: The PR changes the remember request contract but does not implement the proposed shared SDK.

Suggested reviewers: nicholaivogel

Merge Risk: Minimal · up to 29d7c

No actionable merge-blocking risk is identified in the reviewed change.

Pre-merge checks: 5

Check name	Status	Explanation
Title check		The title clearly and concisely describes the main fix: storing the requested memory type during remember operations.
Description check		The description follows the repository template and documents the change, affected files, behavior, tests, limitations, AI use, and migration impact. It clearly states that full workspace tests and li…
Docstring Coverage		Docstring coverage is inconclusive: files from earlier reviews still need to be rechecked within the check's analysis limits. Not blocking.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Description check

Explanation

The description follows the repository template and documents the change, affected files, behavior, tests, limitations, AI use, and migration impact. It clearly states that full workspace tests and live-daemon testing were not completed.

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Actionable comments posted: 1

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Inline comments:
Review comments at @web/docs/src/content/docs/api/memory/write-lifecycle.md:
- Line 116: Update the oversized-content statement in the write lifecycle
documentation to say that chunks share a type when the caller supplies one; do
not imply that inferred types are uniform when the request omits type.

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[Ostico]

@coderabbitai Fixed in bec8744: the write lifecycle doc now says every chunk gets the requested type, and that without a type the type is inferred for each chunk separately (memory-routes.ts calls inferType(chunk) per chunk), so chunks of one request can differ. Please re-review and approve if nothing else is open.

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🧩 Analysis chain

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cat AGENTS.md
cat platform/daemon/AGENTS.md
ast-grep outline platform/daemon/src/routes/memory-routes.ts
ast-grep outline platform/daemon/src/routes/utils.ts --match 'parseMemoryType|parseModifyPatch|parseOptionalString'
rg -n -C 7 'inferType\(chunk\)|requestedType|parseMemoryType|chunk.*type|type.*chunk' platform/daemon/src/routes/memory-routes.ts web/docs/src/content/docs/api/memory/write-lifecycle.md
gh pr view 2150 --repo Signet-AI/signetai --json headRefOid,reviewDecision,statusCheckRollup,mergeStateStatus
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🏁 Script executed:

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🧠 Learnings used

Learnt from: CR
Repo: Signet-AI/signetai PR: 0
File: platform/daemon/AGENTS.md:0-0
Timestamp: 2026-10-24T07:44:26.794Z
Learning: Applies to platform/daemon/** : Source excerpt:
# Daemon guidance

## API and runtime proof

- Keep `web/docs/src/content/docs/api.md` synchronized with route methods, bodies, responses, and
  auth behavior. Update the other daemon references when pipeline, source, or
  lifecycle contracts change.

Learnt from: CR
Repo: Signet-AI/signetai PR: 0
File: AGENTS.md:0-0
Timestamp: 2026-10-14T09:47:01.634Z
Learning: Applies to **/* : Source excerpt:
# Working in Signet

## Loading local context

For local mechanical facts, executable source, manifests, schemas, and generated-file headers outrank stale prose. For intended product behavior, existing implementation remains evidence rather than automatic authority.

_{You are interacting with an AI system.}

[Alexi5000]

Agree with keeping type free-form. One normalization gap now that model-driven tool calls can set it directly.

[Alexi5000]

The requested type is trimmed but not case-normalized, while the rest of the daemon compares types case-sensitively: BOOSTED_TYPES in pipeline/dampening.ts:98 (constraint, decision), results.filter((r) => r.type === "decision") in memory-search.ts:3217, and the m.type = ? recall filter in memory-search-filters.ts:38. inferType() always returns lowercase, so before this PR every stored type matched those checks.

The main callers are LLM tool calls with a free-text schema (e.g. Hermes memory_store: "Memory type, e.g. fact, preference, decision."), so "Decision" or "Daily-Log" is a realistic input. Those rows would be stored but silently miss decision boosting and type=decision filters. Lowercasing in parseMemoryType (which also covers PATCH and batch modify) would keep the free-form behavior while matching how inferred types are stored. A "Decision" -> "decision" case next to the trim test would pin it.