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

Annotations already declare destructiveHint=true, idempotentHint=false, and openWorldHint=true, so the safety profile is covered. The description adds a genuinely non-structured detail: execution is gated on user approval of the exact request in BEON PASS, which tells the agent this cannot be fired autonomously. It stops short of describing what production state is overwritten or whether the merge is reversible, so it is not a 5.

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

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

Two tight sentences with zero filler, and the core action is front-loaded ahead of the approval constraint. Every clause carries information.

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

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

For a destructive production mutation with eight parameters, one required, an opaque BEON approval workflow, and no output schema, the description is far too thin. It never says how the agent obtains the approval_id or what the merge does to existing production data, leaving the critical invocation path unexplained.

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

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

Schema description coverage is 0% across 8 parameters, so the description carries the full burden. It hints at the branch target via the word 'branch' and at the approval flow via 'BEON PASS', but it never explains branch_ref's format, how approval_id is obtained, or what the beon_app_id/beon_environment/beon_connection_id plumbing params mean. Most parameters remain opaque.

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

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

The description gives a specific verb (merge), resource (branch), and explicit destination (its parent production environment), which cleanly separates it from the sibling branch operations like supabase_create_branch, supabase_delete_branch, and supabase_list_branches. An agent can identify the operation without opening the schema.

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

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

The only guidance offered is the precondition that the request must be approved in BEON PASS before execution. There is no statement of when to merge versus other routes (e.g., release preparation or checkpoint restore), nor any when-not-to-use condition, so the agent must infer the selection context.

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