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apply_actions

Destructive

Validate and apply a batch of flow-builder actions — the single write path for editing flows, blocks, variables, broadcasts, sequences, and folders. Call this directly; a separate validate_actions call beforehand is unnecessary. Broadcasts have no dedicated tool and are managed here: create_broadcast makes a DRAFT (it owns its flow via data.flowId — add the message blocks in the same batch, no separate create_flow), optionally with create_recurrence_schedule + attach_recurrence_to_broadcast for recurring — like every edit it starts at the next deploy_application and sends nothing before, so confirm the time and audience with the user before deploying. For a one-time broadcast, a later update_broadcast with status SCHEDULED and scheduledAt is what schedules/sends it. The full recipe is in get_action_schema under broadcasts. DESTRUCTIVE: the batch may include delete_block, delete_link, delete_flow, delete_variable, delete_operation, and delete_broadcast. Confirm with the user before applying deletions. delete_operation also removes the operation's hidden graph flow and run history; delete_broadcast also removes the broadcast's delivery history and its content flow, and neither can be undone. IRREVERSIBLE SIDE EFFECTS: run_operation starts a real operation run, which may send broadcasts to real contacts and write application variables. It cannot be undone or recalled, is not idempotent, and is available only through this tool — confirm with the user before applying a batch containing one, and never blindly retry a timed-out call that did. Validation always runs first and an invalid batch applies nothing. If an action fails mid-batch, execution stops and the server tries to undo the steps already applied: reverted: true means nothing from the batch remains (fix the reported error and resend); reverted: false on a failure means part of it may still be applied (errorClass: "partial_write") — re-read state with get_flow_context before retrying rather than blindly resending the batch. errorClass is one of validation | rule | conflict | permission | partial_write | unknown. update_block patches: a setting you leave out of data.data (or out of an object inside it) is KEPT; a list you send (menu.buttons, triggers, actions, media) replaces the stored list, so resend the items you keep with their ids; an explicit null clears a setting that may be empty, and is refused on data.menu, data.triggers, data.actions and data.media (send [] or the full list). A key a step does not have is refused as UNKNOWN_CONFIG_KEY with its path and the nearest real key, so one retry can fix it; a setting a step requires is refused as MISSING_REQUIRED_CONFIG_KEY. Not idempotent — resending a batch of create_* actions creates duplicates. Read get_action_schema for the action contract and get_design_guidelines before any structural edit. Returns { success, validated, reverted, errorClass (on failure), changes, errors, warnings, actionId } plus an idRemap mapping placeholder ids to the real ids that were created. Applying does NOT publish. Edits land on the draft graph and connected bots keep serving the previously published version until deploy_application runs — finish a round of edits, then deploy.

Input Schema

NameRequiredDescriptionDefault
flowIdNoDefault flow id for actions in the batch that do not carry their own. Optional when every action targets an explicit flow.
actionsYesOrdered batch of at least one action, applied in array order. An invalid batch is rejected up front and applies nothing, but execution itself is NOT atomic: if an action fails mid-batch, execution stops there and the actions before it stay applied — re-read state before retrying.
applicationIdNoApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUIRED. Call list_applications to get the id.
conversationIdNoOptional id used to group the resulting audit records under one editing session.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "create_operation",
      -  "run_operation",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_operation",
      -  "delete_broadcast",
      -  "delete_variable",
      -  "update_variable",
      -  "create_media_from_url",
      -  "create_media_from_attachment",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document",
      -  "update_knowledge_base_text_document",
      -  "delete_knowledge_base_document",
      -  "import_website_into_knowledge_base",
      -  "update_custom_code_file",
      -  "edit_custom_code_file"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_operation",
      +  "delete_broadcast",
      +  "delete_variable",
      +  "update_variable",
      +  "create_media_from_url",
      +  "create_media_from_attachment",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document",
      +  "update_knowledge_base_text_document",
      +  "delete_knowledge_base_document",
      +  "import_website_into_knowledge_base",
      +  "update_custom_code_file",
      +  "edit_custom_code_file",
      +  "patch_content"
      +]
  2. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "create_operation",
      -  "run_operation",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_operation",
      -  "delete_broadcast",
      -  "delete_variable",
      -  "update_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document",
      -  "update_knowledge_base_text_document",
      -  "delete_knowledge_base_document",
      -  "import_website_into_knowledge_base",
      -  "update_custom_code_file",
      -  "edit_custom_code_file"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_operation",
      +  "delete_broadcast",
      +  "delete_variable",
      +  "update_variable",
      +  "create_media_from_url",
      +  "create_media_from_attachment",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document",
      +  "update_knowledge_base_text_document",
      +  "delete_knowledge_base_document",
      +  "import_website_into_knowledge_base",
      +  "update_custom_code_file",
      +  "edit_custom_code_file"
      +]
  3. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "create_operation",
      -  "run_operation",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_operation",
      -  "delete_broadcast",
      -  "delete_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document",
      -  "update_knowledge_base_text_document",
      -  "delete_knowledge_base_document",
      -  "import_website_into_knowledge_base",
      -  "update_custom_code_file",
      -  "edit_custom_code_file"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_operation",
      +  "delete_broadcast",
      +  "delete_variable",
      +  "update_variable",
      +  "create_media_from_url",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document",
      +  "update_knowledge_base_text_document",
      +  "delete_knowledge_base_document",
      +  "import_website_into_knowledge_base",
      +  "update_custom_code_file",
      +  "edit_custom_code_file"
      +]
  4. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "create_operation",
      -  "run_operation",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_operation",
      -  "delete_broadcast",
      -  "delete_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document",
      -  "update_knowledge_base_text_document",
      -  "delete_knowledge_base_document",
      -  "import_website_into_knowledge_base",
      -  "update_custom_code_file"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_operation",
      +  "delete_broadcast",
      +  "delete_variable",
      +  "create_media_from_url",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document",
      +  "update_knowledge_base_text_document",
      +  "delete_knowledge_base_document",
      +  "import_website_into_knowledge_base",
      +  "update_custom_code_file",
      +  "edit_custom_code_file"
      +]
  5. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "create_operation",
      -  "run_operation",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_operation",
      -  "delete_broadcast",
      -  "delete_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document",
      -  "update_knowledge_base_text_document",
      -  "delete_knowledge_base_document",
      -  "import_website_into_knowledge_base"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_operation",
      +  "delete_broadcast",
      +  "delete_variable",
      +  "create_media_from_url",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document",
      +  "update_knowledge_base_text_document",
      +  "delete_knowledge_base_document",
      +  "import_website_into_knowledge_base",
      +  "update_custom_code_file"
      +]
  6. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "create_operation",
      -  "run_operation",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_operation",
      -  "delete_broadcast",
      -  "delete_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document",
      -  "import_website_into_knowledge_base"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_operation",
      +  "delete_broadcast",
      +  "delete_variable",
      +  "create_media_from_url",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document",
      +  "update_knowledge_base_text_document",
      +  "delete_knowledge_base_document",
      +  "import_website_into_knowledge_base"
      +]
  7. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "create_operation",
      -  "run_operation",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_operation",
      -  "delete_broadcast",
      -  "delete_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_operation",
      +  "delete_broadcast",
      +  "delete_variable",
      +  "create_media_from_url",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document",
      +  "import_website_into_knowledge_base"
      +]
  8. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "create_operation",
      -  "run_operation",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_operation",
      +  "delete_broadcast",
      +  "delete_variable",
      +  "create_media_from_url",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document"
      +]
  9. Changed2 schema fields changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "update_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "create_operation",
      +  "run_operation",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_variable",
      +  "create_media_from_url",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document"
      +]
    • changedInput schema / properties / actions / items / properties / target / description
      Previous value: -"Id of the entity the action operates on (block, flow, variable, broadcast, ...). To reference an entity created earlier in the same batch, use its placeholder id — flow_1, block_1, var_1, broadcast_1, schedule_1, button_1, media_1. get_action_schema lists the full placeholder set."New value: +"Id of the entity the action operates on (block, flow, variable, broadcast, ...). To reference an entity created earlier in the same batch, use its placeholder id — flow_1, block_1, var_1, broadcast_1, schedule_1, button_1, media_1, operation_1. get_action_schema lists the full placeholder set."
  10. Changed8 schema fields changed
    • addedInput schema / properties / actions / description
      Added value: +"Ordered batch of at least one action, applied in array order. An invalid batch is rejected up front and applies nothing, but execution itself is NOT atomic: if an action fails mid-batch, execution stops there and the actions before it stay applied — re-read state before retrying."
    • addedInput schema / properties / actions / items / properties / action / description
      Added value: +"The action kind to perform. Call get_action_schema for the required fields of each kind."
    • addedInput schema / properties / actions / items / properties / data / description
      Added value: +"Action payload. Shape depends on `action` — get_action_schema returns the required and optional fields per kind."
    • addedInput schema / properties / actions / items / properties / target / description
      Added value: +"Id of the entity the action operates on (block, flow, variable, broadcast, ...). To reference an entity created earlier in the same batch, use its placeholder id — flow_1, block_1, var_1, broadcast_1, schedule_1, button_1, media_1. get_action_schema lists the full placeholder set."
    • addedInput schema / properties / actions / items / properties / validation / description
      Added value: +"Optional assertions to check before applying, as returned by get_action_schema."
    • addedInput schema / properties / applicationId / description
      Added value: +"Application (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUIRED. Call list_applications to get the id."
    • addedInput schema / properties / conversationId / description
      Added value: +"Optional id used to group the resulting audit records under one editing session."
    • addedInput schema / properties / flowId / description
      Added value: +"Default flow id for actions in the batch that do not carry their own. Optional when every action targets an explicit flow."
  11. Changed1 schema field changed
    • changedInput schema / properties / actions / items / properties / action / enum
      Previous value: -[
      -  "create_variable",
      -  "create_block",
      -  "update_block",
      -  "create_link",
      -  "create_flow",
      -  "update_flow",
      -  "create_broadcast",
      -  "create_recurrence_schedule",
      -  "attach_recurrence_to_broadcast",
      -  "create_sequence",
      -  "update_sequence",
      -  "create_folder",
      -  "move_flow_to_folder",
      -  "delete_block",
      -  "delete_link",
      -  "delete_flow",
      -  "delete_variable",
      -  "create_media_from_url",
      -  "create_knowledge_base",
      -  "create_knowledge_base_text_document"
      -]New value: +[
      +  "create_variable",
      +  "create_block",
      +  "update_block",
      +  "create_link",
      +  "create_flow",
      +  "update_flow",
      +  "create_broadcast",
      +  "create_recurrence_schedule",
      +  "attach_recurrence_to_broadcast",
      +  "update_broadcast",
      +  "create_sequence",
      +  "update_sequence",
      +  "create_folder",
      +  "move_flow_to_folder",
      +  "delete_block",
      +  "delete_link",
      +  "delete_flow",
      +  "delete_variable",
      +  "create_media_from_url",
      +  "create_knowledge_base",
      +  "create_knowledge_base_text_document"
      +]
  12. First observed

TDQS

A4.8/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already flag destructiveHint and non-idempotency, but the description goes far beyond them: it names which actions are destructive, that delete_operation also removes the hidden graph flow and run history, that delete_broadcast removes delivery history, that run_operation sends real broadcasts and writes variables and cannot be recalled, and it explains the validation-first / partial-revert model with the errorClass taxonomy.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the identity of the tool and the single most important routing fact, and nearly every sentence carries decision-relevant content for a 32-action batch tool. It is still a dense block of prose with some repetition — user confirmation is advised three separate times, and non-idempotency is stated twice — which could be tightened with headings.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a high-complexity, no-output-schema tool, it covers the return shape explicitly (success, validated, reverted, errorClass, changes, errors, warnings, actionId, plus idRemap), the failure/revert semantics, and the deploy boundary (edits land on the draft graph, live bots keep the published version). Nothing an agent needs to call it safely is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the baseline is 3; the description adds real value by explaining the flowId default, how placeholder target ids are remapped via idRemap, and the update_block patch contract (omitted keys kept, lists replaced, explicit nulls refused on menu/triggers/actions/media). It stops short of documenting the validation or conversationId parameters beyond what the schema already says.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ("Validate and apply a batch of flow-builder actions") plus explicit scope ("the single write path for editing flows, blocks, variables, broadcasts, sequences, and folders"). This immediately distinguishes it from read-side siblings like get_flow_context and from the dedicated validate_actions tool.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly says to call this directly and that "a separate validate_actions call beforehand is unnecessary" — a rare, unambiguous exclusion of a sibling. It also routes to get_action_schema for the action contract, get_design_guidelines before structural edits, get_flow_context before retrying a partial write, and deploy_application to publish.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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