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ctf_submit_flag

Submit a flag for a Capture The Flag challenge by providing the challenge ID and flag value to validate your solution.

Instructions

Submit CTF flag.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
flagYes
challenge_idYes
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. 'Submit' implies a write operation, but there is no mention of authentication requirements, success/failure behavior, scoring effects, or side effects. This lack of detail leaves the agent uninformed about operational implications.

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

Conciseness2/5

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

The description is extremely concise at three words, which might appear efficient, but it omits critical details and is under-specification rather than effective conciseness. It lacks the substance needed to guide correct usage.

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

Completeness2/5

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

For a submission tool with two required parameters, no output schema, and no annotations, the description is insufficiently complete. It does not provide information about return values, expected outcomes, or edge cases, making it inadequate for an agent to fully understand the tool's behavior.

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

Parameters1/5

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

The input schema defines challenge_id and flag with no descriptions, and the tool description does not explain their meaning, format, or relationship. With 0% schema description coverage, the description fails to compensate, leaving the agent without necessary parameter information.

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 'Submit CTF flag' uses a specific verb and resource, clearly indicating the core action of submitting a flag for a CTF challenge. It distinguishes itself from sibling tools like ctf_list_challenges, ctf_get_challenge, and ctf_scoreboard, which serve different purposes. However, it is terse and does not elaborate on the submission context.

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?

No guidance is provided on when to use this tool, what prerequisites exist (e.g., obtaining a challenge_id via ctf_list_challenges), or when to prefer alternatives. The description simply states the action without any usage context or exclusions.

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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