ctf_submit_flag

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

The description discloses the return outcomes (correct, already solved, incorrect), which is useful. However, with no annotations, it fails to mention other behavioral aspects such as authentication requirements, rate limits, whether the submission is idempotent, or side effects like updating the scoreboard. This leaves gaps in understanding the tool's behavior beyond the immediate return.

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?

The description is concise, with two clear sentences followed by an Args list and an example. It front-loads the purpose, uses no extraneous words, and every sentence adds value. The structure is ideal for quick agent comprehension.

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 simple submission tool, the description covers the essential aspects: what it does, the parameters, and the return values. The presence of an output schema further reduces the need to document return structure. However, it omits error handling details and prerequisites, which for a CTF tool could be important (e.g., Must a challenge be connected? Is there a session?). Overall, it is nearly complete but has minor gaps.

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?

The input schema has no descriptions (0% coverage), but the description compensates by explaining each parameter: 'challenge_id: The challenge ID to submit for' and 'flag: The flag string (e.g. 'flag{example_flag_here}')'. This adds meaningful semantic context beyond the type and requirement information in the schema.

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 clearly states the tool's purpose: 'Submit a flag for a CTF challenge.' It specifies the action ('submit'), the resource ('flag'), and the context ('CTF challenge'). The purpose is distinct from sibling CTF tools like ctf_list_challenges or ctf_connect, which handle different actions.

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?

Usage is implied by the context (CTF challenges), but the description does not explicitly state when to use this tool versus alternatives, nor does it mention any prerequisites (e.g., must have a valid challenge ID) or situations where submission might be inappropriate. There is no clear guidance on when not to use it.

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