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Delete asset tag

delete_asset_tag
Destructive

Removes a tag from an authenticated user's fal Assets library using its tag ID, with optional account profile and idempotency key for safe retries.

Instructions

Delete asset tag for the authenticated user's fal Assets library.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tag_idYesTag ID
accountNoExact private account key profile label, not an authenticated provider owner ID.
confirmNoSet true only when the user asked for exactly this action.
Idempotency_KeyNoOptional idempotency key for safe request retries

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv3.0.1
    • changedInput schema / properties / confirm / description
      Previous value: -"Must be true for the requested mutation, paid work or private output file."New value: +"Set true only when the user asked for exactly this action."
  2. First observedv2.0.0

TDQS

C2.9/5.0
Behavior2/5

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

Annotations already declare destructiveHint=true, readOnlyHint=false, idempotentHint=false, and openWorldHint=true, covering the safety profile fully. The description adds nothing beyond that — it doesn't explain the confirm guard, the effect on assets currently holding the tag, or why an Idempotency_Key exists alongside idempotentHint=false.

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?

A single front-loaded sentence with no filler. It is efficient, though the terseness edges toward under-specification rather than disciplined brevity.

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

Completeness3/5

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

For a destructive, non-idempotent mutation the annotations carry the safety burden and there is no output schema to explain. Still, the description omits the confirm requirement and the delete-vs-unassign distinction, leaving gaps an agent must infer.

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

Parameters3/5

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

Schema description coverage is 100%, so all four parameters are already documented in the schema, setting the baseline at 3. The description adds no additional meaning about tag_id, account, confirm, or Idempotency_Key.

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

Purpose4/5

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

The description states a specific verb (Delete) and resource (asset tag) scoped to the authenticated user's fal Assets library, so the core action is unambiguous. It does not, however, distinguish itself from close siblings like update_asset_tag, assign_asset_tag, or unassign_asset_tag, which an agent could easily confuse with deletion.

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

Usage Guidelines2/5

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

There is no when-to-use guidance and no mention of alternatives. The most important routing ambiguity — deleting a tag entirely versus unassigning it from an asset — is left unaddressed despite unassign_asset_tag being a direct sibling.

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