# register_docx_derivative [MAINTENANCE] W1-K — record that derivative_path (e.g. a rendered PDF/DOCX export) was generated FROM source_path at a known content state. source_content_hash is the CALLER-computed content hash of the source document at generation time (the server never reads either file itself — hash it locally, e.g. sha256, before calling this). Always creates a NEW row with status='candidate' — re-rendering the same source/derivative pair over time is expected and never overwrites a prior registration; use promote_docx_candidate to make one candidate the accepted derivative for its source. generating_tool names the tool/script that produced it (e.g. 'pandoc 3.1' or 'export_pdf.py'); generated_at defaults to now (UTC) when omitted. Returns {derivative: {...}} including the new derivative_id. Persistent-state disclosure: on hosted Meridian, supplied text and project/session metadata -- including task log entries, pinned decisions, sprint items, notes, handoff/goal state, and HITL queue items -- are sent to and stored in Meridian's service, in an isolated per-tenant Postgres database (Neon); self-hosted deployments keep the same categories in the configured local SQLite/Postgres database. This data is visible in the dashboard and API, and may resurface in later project context or handoffs. Notes and pinned decisions can be deleted individually; task log entries and sprint items can be deleted via the dashboard/API (not exposed as an agent-facing tool); HITL queue items and handoff state have no per-record delete. Full removal of any of this data is available via project or account deletion, using the documented controls. Do not include secrets. Agent View of the PolicyLayer registry record for `register_docx_derivative`. HTML page: https://policylayer.com/tools/io-github-ajc3xc-meridian/register-docx-derivative ## Facts - Tool: `register_docx_derivative` - Server: Meridian (`@meridianmcp/mcp`) — https://policylayer.com/tools/io-github-ajc3xc-meridian.md - Install: `npx -y @meridianmcp/mcp` - Homepage: https://github.com/meridianmcp/Meridian - Risk category: Write (Medium risk) - Registry record: grade D, identity unverified - Server auth posture: gated - Server CORS policy: * - Server rate-limited: no - Parameters: 10 (4 required) - Recommended policy verdict: Rate-limited ## Parameters | Parameter | Type | Required | Description | | --- | --- | --- | --- | | `notes` | string | no | Optional free-text note about this derivative. | | `project_id` | string | no | | | `session_id` | string | yes | | | `source_path` | string | yes | Path to the canonical .docx source document. Need not be project-relative — a docx source routinely lives outside the repo. | | `generated_at` | string | no | ISO-8601 timestamp the derivative was generated. Defaults to now (UTC) when omitted. | | `project_name` | string | no | Project name — an alternative to project_id; resolved to the id internally. project_id wins if both are given. | | `derivative_path` | string | yes | Path to the derivative .docx document generated from source_path. | | `generating_tool` | string | no | Name/version of the tool or script that generated this derivative. | | `source_content_hash` | string | yes | Caller-computed content hash of source_path's CURRENT bytes at generation time. Required — this is the provenance anchor verify_docx_diff later compares against | | `derivative_content_hash` | string | no | Optional caller-computed content hash of derivative_path's bytes at generation time. | Parameters from the server's own tool schema. ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "register_docx_derivative", "arguments": { "session_id": "", "source_path": "", "derivative_path": "", "source_content_hash": "" } } } ``` ## Why register_docx_derivative is rated Medium An AI agent can call register_docx_derivative faster than any human can review: one bad instruction and it creates or modifies resources in Meridian by the hundred, each call as confident as the last. Risk signals: Accepts file system path (source_path) · High parameter count (10 properties) ## Use case AI agents use register_docx_derivative to create or update resources in Meridian, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Meridian environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Meridian: ```json { "version": "1", "default": "deny", "tools": { "register_docx_derivative": { "limits": [ { "counter": "register_docx_derivative_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Meridian (234) - `accept_handoff` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/accept-handoff.md - `acquire_docx_document_lease` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/acquire-docx-document-lease.md - `answer_hitl` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/answer-hitl.md - `batch_mutate` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/batch-mutate.md - `capture_research_finding` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/capture-research-finding.md - `checkpoint` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/checkpoint.md - `claim_docx_region` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/claim-docx-region.md - `claim_file` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/claim-file.md - `claim_sprint_item` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/claim-sprint-item.md - `clear_capability_profile` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/clear-capability-profile.md - `clone_profile_layer` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/clone-profile-layer.md - `delete_custom_hook` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/delete-custom-hook.md - `delete_note` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/delete-note.md - `delete_sprint_item_pointer` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/delete-sprint-item-pointer.md - `delete_watchlist_query` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/delete-watchlist-query.md - `dismiss_hitl` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/dismiss-hitl.md - `fan_out_sprint_items` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/fan-out-sprint-items.md - `idle_until_all_done` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/idle-until-all-done.md - `index_equation` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/index-equation.md - `index_figure` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/index-figure.md - `index_table` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/index-table.md - `ingest_document` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/ingest-document.md - `ingest_document_structure` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/ingest-document-structure.md - `link_figure_caption` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/link-figure-caption.md - `link_flag_to_section` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/link-flag-to-section.md - `link_proposal_lineage` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/link-proposal-lineage.md - `link_table_caption` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/link-table-caption.md - `log_task` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/log-task.md - `purge_ai_log` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/purge-ai-log.md - `receive_messages` — Destructive — https://policylayer.com/tools/io-github-ajc3xc-meridian/receive-messages.md - …and 204 more: https://policylayer.com/tools/io-github-ajc3xc-meridian.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-ajc3xc-meridian · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-ajc3xc-meridian