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https://github.com/bytedance/deer-flow.git
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47b258ebd7
* feat(mcp): add durable task runtime foundation * fix(chart): sync embedded config version * fix(mcp): isolate task polls during shutdown * feat(mcp): track consecutive poll errors on mcp_tasks poll_attempt_count grows on every claim (successful polls included), so it cannot drive a failure backoff without misjudging normal long tasks. Add consecutive_poll_error_count: incremented when a claim is released after a poll error, reset to zero by any applied snapshot. The backoff/terminal policy that consumes it lands with the first concrete driver. * fix(mcp): harden durable task lifecycle * feat(mcp): add ordinary durable task driver * test(mcp): address durable task review feedback * fix(mcp): preserve submit tool descriptions * fix(mcp): bound remote task calls * fix(mcp): bound persisted task payloads * fix(mcp): preserve task tool error details * fix(mcp): enforce durable task boundaries * test(mcp): cover task config snapshot lifecycle --------- Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
50 lines
2.6 KiB
Python
50 lines
2.6 KiB
Python
"""Shared runtime protocol constants."""
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DEFAULT_SKILLS_CONTAINER_PATH = "/mnt/skills"
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# Hidden subdirectory (under a thread's outputs dir) that holds the browser
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# tools' per-step screenshots. These are transient live-progress frames, not
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# deliverables, so the workspace-changes scanner excludes this directory. Both
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# the browser tools (which write here) and the scanner (which ignores it) import
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# this single source of truth so the name cannot drift between them.
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BROWSER_FRAMES_DIRNAME = ".browser-frames"
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# Default subdirectory (under a thread's outputs dir) where the tool-output
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# budget middleware persists oversized tool outputs. These are process
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# feedback the model reads back via ``read_file`` (the budget preview carries
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# the reference), not deliverables, so the workspace-changes scanner excludes
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# this directory and run delivery verification never counts it as a produced
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# artifact. Both the budget middleware's default ``storage_subdir`` and the
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# scanner import this single source of truth so the name cannot drift between
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# them; a custom configured ``storage_subdir`` is threaded through the
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# snapshot capture as an extra excluded dir name.
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TOOL_RESULTS_DIRNAME = ".tool-results"
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# Default timeout (seconds) for MCP server bring-up: tool discovery (subprocess
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# spawn + initialize + tools/list) and persistent-session initialization. A hung
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# stdio server (e.g. npx blocked on a package download or a server that never
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# answers initialize) would otherwise block agent construction forever — and on
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# the Gateway event loop, the whole process. Per-server override is
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# ``mcpServers.<name>.session_init_timeout``; ``None`` disables the timeout.
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DEFAULT_MCP_SESSION_INIT_TIMEOUT = 60.0
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# Durable MCP task storage/protocol limits. The runtime validators and ORM use
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# the same constants so SQLite cannot accept values that PostgreSQL later
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# rejects at its VARCHAR boundaries.
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MCP_TASK_SERVER_NAME_MAX_LENGTH = 128
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MCP_TASK_REMOTE_ID_MAX_LENGTH = 255
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MCP_TASK_NAME_MAX_LENGTH = 255
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MCP_TASK_RESULT_ARTIFACT_MAX_BYTES = 65_536
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MCP_TASK_POLL_AFTER_MAX_SECONDS = 86_400
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# Persisted run-event envelope limits. Runtime definitions and the ORM both
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# import these from this dependency-free module so lower layers never need to
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# initialize deerflow.runtime just to validate storage constraints.
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RUN_EVENT_TYPE_MAX_LENGTH = 32
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RUN_EVENT_CATEGORY_MAX_LENGTH = 16
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# Workspace changes are produced below the runtime layer, so their persisted
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# event identity also lives here rather than in the runtime event catalog.
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WORKSPACE_CHANGES_EVENT_TYPE = "workspace_changes"
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WORKSPACE_CHANGES_EVENT_CATEGORY = "workspace"
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