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The 3ngram MCP server exposes the following work contexts tools. Every entry is generated from the tool’s source signature and docstring, so this page never drifts from the backend.
Required parameters are marked with the required attribute. Optional parameters show their default value.

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use_context

Use Work Context · read-only · non-destructive · idempotent · closed-world Operate a Work Context in one of five modes: a lens over your memories. A Work Context is a saved, source-grounded package for a job-to-be-done (e.g. “3ngram GTM”, “Engineering Implementation”). This tool resolves the context’s membership for you — the requesting user — and then dispatches to one of five existing surfaces, scoped to that resolved membership. SECURITY INVARIANT — a Work Context is a lens, not an access grant. Resolution always runs inside your own visibility predicate. A memory you cannot already see is NEVER returned by ANY mode, even when it has been pinned into a context that is shared with you. Adding a memory to a shared context can only organize memories you could already see; it can never widen who can see that memory. Modes (dispatch target):
  • search — search across the context’s resolved memories (default).
  • brief — a session briefing assembled over the context.
  • execute — task-relevant context compiled for the work at hand (pass task to describe it; defaults to the context’s purpose).
  • monitor — blockers, overdue, and stale items scoped to the context.
  • delegate — a portable handoff package scoped to the context.
The context’s instructions and per-mode mode_config tuning are surfaced as a header on the dispatched output. Returns: str Source: backend/src/engram/mcp/tools/work_context.py

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Parameters

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context_id
str
required
work_contexts.id (UUID) of a context you can see.
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mode
str
default:"'search'"
One of search / brief / execute / monitor / delegate. Defaults to search.
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task
str | None
default:"None"
Optional task description for execute mode. Ignored by other modes; defaults to the context’s purpose when omitted.
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project
str | None
default:"None"
Optional project filter passed through to the dispatched surface (brief / monitor / execute / delegate).
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limit
int | None
default:"None"
Optional result cap for search mode (defaults to the full resolved candidate set).