openclaw-multi-session-plugins

OpenClaw plugin for per-session workspace isolation and scoped XWorkmate artifact handling.

Why

XWorkmate talks to OpenClaw through xworkmate-bridge using the app-facing /acp and /acp/rpc contract with OpenClaw routing metadata. The bridge sends chat.send, waits for agent.wait, then asks this plugin for a session/run-scoped artifact manifest. The app can then sync generated files into its local thread workspace without changing the UI or adding provider-specific routes.

This plugin is not a scheduler or bridge client. OpenClaw core owns sub-agents, multi-agent routing, queues, cron, task registry state, and cross-session execution. This package only adapts existing OpenClaw task and session identities into isolated artifact directories, durable session key mappings, and signed artifact reads.

In practice, it provides:

• session preparation for a specific app thread and run
• task-scoped artifact directories under the resolved OpenClaw workspace
• safe export and read operations for XWorkmate Bridge
• signed artifact references that are bound to the issuing session and run

It registers the minimal Gateway methods needed by XWorkmate:

xworkmate.session.prepare
xworkmate.tasks.get
xworkmate.artifacts.collect-and-snapshot
xworkmate.artifacts.export
xworkmate.artifacts.read

xworkmate.session.prepare writes the durable SessionEntry.pluginExtensions["openclaw-multi-session-plugins"]["xworkmate.sessionMapping"] mapping and creates a per-task artifact scope under tasks/ in the resolved OpenClaw workspace. export and read then return safe, relative artifact entries that XWorkmate Bridge can normalize into the APP artifacts[] contract.

Install

Install from the npm package through OpenClaw:

openclaw plugins install openclaw-multi-session-plugins
openclaw plugins enable openclaw-multi-session-plugins

Or install from a Git checkout for development:

git clone https://github.com/x-evor/openclaw-multi-session-plugins.git
openclaw plugins install --link ./openclaw-multi-session-plugins
openclaw plugins enable openclaw-multi-session-plugins

Equivalent config shape for a linked checkout:

{
  "plugins": {
    "load": {
      "paths": [
        "/path/to/openclaw-multi-session-plugins"
      ]
    },
    "entries": {
      "openclaw-multi-session-plugins": {
        "enabled": true
      }
    }
  }
}

Contract

Prepare request params are supplied by the OpenClaw host, bridge, or APP runtime. On OpenClaw runtimes that expose a trusted plugin sessionScope, the plugin uses that native scope first and maps native sessionScope.sessionKey to openclawSessionKey internally. External Gateway callers must use typed appThreadKey, openclawSessionKey, runId, and optional workspaceDir params. Legacy sessionKey is not accepted as a Gateway task or artifact lookup alias. The plugin does not parse paths from chat text and does not invent fallback session/run identities. The optional agent tool does not expose these fields to the model; it only uses host-injected tool context.

{
  "appThreadKey": "draft:thread-main",
  "openclawSessionKey": "agent:main:draft:thread-main",
  "runId": "turn-1",
  "workspaceDir": "/home/user/.openclaw/workspace"
}

Prepare response payload:

{
  "runId": "turn-1",
  "sessionKey": "agent:main:draft:thread-main",
  "remoteWorkingDirectory": "/home/user/.openclaw/workspace",
  "remoteWorkspaceRefKind": "remotePath",
  "artifactScope": "tasks/thread-main-.../turn-1-...",
  "scopeKind": "task",
  "artifactDirectory": "/home/user/.openclaw/workspace/tasks/thread-main-.../turn-1-...",
  "relativeArtifactDirectory": "tasks/thread-main-.../turn-1-...",
  "warnings": []
}

Export request params:

{
  "openclawSessionKey": "agent:main:draft:thread-main",
  "runId": "turn-1",
  "artifactScope": "tasks/thread-main-.../turn-1-...",
  "sinceUnixMs": 1770000000000,
  "maxFiles": 64,
  "maxInlineBytes": 10485760
}

Export response payload:

{
  "runId": "turn-1",
  "sessionKey": "agent:main:draft:thread-main",
  "remoteWorkingDirectory": "/home/user/.openclaw/workspace",
  "remoteWorkspaceRefKind": "remotePath",
  "artifactScope": "tasks/thread-main-.../turn-1-...",
  "scopeKind": "task",
  "artifacts": [
    {
      "relativePath": "reports/final.md",
      "label": "final.md",
      "contentType": "text/markdown",
      "sizeBytes": 1234,
      "sha256": "...",
      "artifactRef": "...",
      "artifactScope": "tasks/thread-main-.../turn-1-...",
      "scopeKind": "task"
    }
  ],
  "warnings": []
}

Files at or below maxInlineBytes also include encoding: "base64" and content. When artifactScope is omitted, export/list defaults to the current task scope derived from openclawSessionKey/runId for Gateway calls, or from native sessionScope.sessionKey/runId for host-injected tool calls. sinceUnixMs is only a filter inside that task scope. The prepared task scope remains authoritative: when it contains files, the plugin exports only that scope.

If the prepared task scope is empty, trusted Gateway callers may pass expectedArtifactDirs such as ["assets/images", "reports"]. The plugin then scans only those explicit workspace-root subdirectories and labels the exported files with the current task artifactScope. It never performs a broad workspace root scan, never scans owners/*/threads/*, and does not borrow artifacts from earlier task scopes.

Each exported artifact includes artifactRef, a plugin-signed reference over the issued session/run scope, artifact scope, path, size, and SHA-256 digest. read accepts artifactScope + relativePath for the current openclawSessionKey/runId task scope. Signed task artifactRef values are accepted only for the same openclawSessionKey/runId that issued them. There is no unscoped arbitrary workspace read API.

View And Download

After installation, enable the optional agent tool if you want OpenClaw chat to show a quick artifact table:

{
  "agents": {
    "list": [
      {
        "id": "main",
        "tools": {
          "allow": ["openclaw_multi_session_artifacts"]
        }
      }
    ]
  }
}

Then ask OpenClaw to list artifacts in the current workspace. The tool returns a Markdown table with the workspace path, relative file paths, content types, file sizes, and hash prefixes. Files are still stored in the OpenClaw workspace, so local users can open or download them directly from that workspace path.

Gateway clients can use:

• xworkmate.session.prepare before chat.send with typed schemaVersion, appThreadKey, openclawSessionKey, runId, and expectedArtifactDirs to allocate a task artifact directory and persist the app/OpenClaw session mapping.
• Keep the prepared artifactScope/artifactDirectory in the gateway artifact pipeline, not in chat.send params. If chat.send returns a different OpenClaw runId, prepare/export with that actual runId instead of the bridge request id.
• xworkmate.artifacts.list for a metadata-only manifest and Markdown table.
• xworkmate.artifacts.read with artifactScope and relativePath for one task file.
• xworkmate.artifacts.read with artifactRef for a plugin-returned task file.
• xworkmate.artifacts.collect-and-snapshot after agent.wait to copy ~/.openclaw/media/ and /tmp/openclaw/ outputs into the current task scope.
• xworkmate.artifacts.export with artifactScope after collect-and-snapshot for the XWorkmate APP sync path. Pass expectedArtifactDirs when the task contract declares root-level delivery directories.
• xworkmate.tasks.get to read the OpenClaw native task state for a run and return the current artifact export in the same payload.

Large files are metadata-only in the export payload, but XWorkmate Bridge can generate its own signed download URL and call xworkmate.artifacts.read as the only remote file access path.

Limits

• Only files inside the resolved OpenClaw workspace are exported.
• .git, .openclaw, .xworkmate, .pi, transient framework state, and dependency folders are excluded from task artifact exports.
• dist/, build/, and other delivery directories inside the prepared task scope are exported recursively.
• Export scans workspace-root files only from explicit expectedArtifactDirs, only when the prepared task scope is empty, and never from OpenClaw owner/thread workspaces.
• Symlinks are skipped to avoid workspace escape.
• Files larger than maxInlineBytes are listed with metadata and a warning, but are not inlined.
• artifactScope must be tasks/<safe-session-key>/<safe-run-id>.
• export and list default to the current task scope when artifactScope is omitted.
• Direct artifactScope + relativePath reads and scoped exports must match the supplied sessionKey/runId.
• artifactRef is bound to the issued session/run and cannot be reused from another run.
• artifactScope, artifactRef, and relativePath must stay inside the workspace; absolute paths, .., empty path segments, and symlink escapes are rejected.

Development

pnpm install
pnpm test
pnpm typecheck
pnpm pack:check

Coding standards

• No unused exports. Functions and types that are only used within the same file must not be exported. An export keyword signals a public API surface that downstream consumers may depend on.
• No legacy fallback chains. When renaming config keys or environment variables, remove the old name from the codebase. Multiple fallback paths to the same dependent service (e.g., two env vars for the same secret) create confusion and mask configuration errors.
• No hardcoded model identifiers (e.g., kimi-k2.5, minimax-m2.7, glm-5). Model selection must come from configuration or the bridge.
• No silent error swallowing. Every catch block must log, warn, rethrow, or return a meaningful fallback. Empty catch and .catch(() => {}) are forbidden.
• No redundant indirection. If function A only calls B which only calls C with no added logic, inline or remove the middle function.
• No stale config references. Scripts in package.json, CI workflows, and documentation must reference only tooling that still exists in the project.
• Multi-agent references in bridge protocol parameters (multiAgent: true, mode: "multi-agent") are legitimate protocol constants and are not dead code. However, framework-level ARIS or internal multi-agent orchestration code that duplicates bridge functionality must be removed.