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append_active_file

Append content to the note currently open in the live Obsidian session (append_note, aimed at the active note), preserving existing bytes. Same prev_hash compare-and-swap, snapshot, memoryDefense and provenance rules as append_note. Refuses a non-markdown active file.

Domain workspace
Scopes write:notes
Access write
Tags writes, domain:workspace, plugin-bridge
Profile full only
Annotation Value
Read-only no
Destructive no
Idempotent no
Accepts an idempotency key yes

Idempotent is the advisory MCP idempotentHint. Destructive is also yes for a tool that asks for confirmation only on some calls.

No human confirmation is required to call this tool.

Parameter Type Required Default Description
vault string — Vault id. May be omitted when only one vault is available. length 1–64; pattern ^[a-z0-9_-]+$
content string yes — —
ensure_newline boolean true —
prev_hash string — —
options object {} —
options.idempotency_key string — length 1–128
options.create_dirs boolean true —
provenance enum "authored" One of: "authored", "agent_synthesis"
response_format enum — concise returns only the high-signal fields; detailed (the shipped default) returns the full payload. Errors and safety warnings are never trimmed. When omitted, the server’s tools.defaults.responseFormat applies. One of: "concise", "detailed"
verbosity enum — Legacy alias for response_format: terse = concise, full = detailed. One of: "full", "terse"
Field Type Always present Description
vault string yes —
path string yes —
created boolean —
content_hash string yes —
prev_hash string | null —
bytes_written number —
quality_warning object | null —
quality_warning.flags string[] with parent —
quality_warning.computed_at number with parent —
poison_assessment object | null —
poison_assessment.risk enum with parent One of: "none", "suspect", "high"
poison_assessment.signals string[] with parent —
redactions integer range ≥ 0

Other tools in the workspace domain: add_bookmark, append_to_periodic_note, create_periodic_note, delete_active_file, find_or_create_periodic_note, get_active_file, get_periodic_note, list_bookmarks, list_periodic_notes, list_workspaces, open_workspace, patch_active_file, remove_bookmark, resolve_daily_note, save_workspace, update_active_file.

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