SafeRoute

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

No annotations are supplied, so the description carries the full burden. It does disclose genuinely useful behavioral traits: no wallet or signing is required, it only handles approved tokens, and it costs $0.001 USDC. But it never says whether the swap is executed or merely evaluated, what the safety verdict looks like, whether the call is idempotent, or what happens when the check fails, and there is no output schema to fill that in.

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 short sentences with no wasted words, and the key qualifier ('wallet-free approved-token') is front-loaded. It is efficient, though the extreme terseness is part of why the other gaps exist.

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?

A 7-parameter tool with no annotations, no parameter descriptions, and no output schema requires substantially more from the description than a purpose line and a price. Nothing about the swap parameters, the optional tracking fields, or the nature of the preflight result is covered.

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% for 7 parameters, and the description explains none of them. The phrase 'approved-token' hints at the from/to enums, but amount format, intentId, referralCode, sourceAgentId, and discoverySource are entirely undocumented in both the schema and the description. With no coverage in either source, the description needed to compensate and does not.

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 names a specific resource and action: a safety preflight for a swap on Base, performed without a wallet and restricted to approved tokens. That much is concrete. However, it never states what the check actually evaluates or returns, and it doesn't separate this from neighboring tools like get_safe_swap_quote, guard_base_trade, or preflight_transaction, so an agent cannot confidently choose it over the siblings.

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?

There is no statement of when to use it, when not to, or which sibling to use instead. The only usage-adjacent information is the cost line, which tells an agent the price but not the selection criteria. For a tool that sits among four other swap/preflight-related siblings, the absence of routing guidance is a real gap.

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

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

With no annotations, the description carries the full burden of behavioral disclosure. It only mentions the cost ($0.03 USDC), but does not state whether the tool is read-only, what it returns, or any side effects. This is insufficient for safe invocation.

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 extremely concise, consisting of two short sentences that immediately state purpose and cost. It is well-structured and front-loaded with the core function, with no unnecessary wording.

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?

Given the tool has four parameters, no output schema, and no annotations, the description is far too sparse. It omits return values, error behavior, and usage context, making it inadequate for an agent to invoke correctly.

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%, and the description provides no explanation of any of the four parameters (token, intentId, referralCode, sourceAgentId). It does not even mention that a token is required, leaving the agent without meaningful guidance beyond the schema enum.

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 performs a risk and liquidity check for approved Base tokens, which is specific and distinct from sibling tools like check_base_swap and get_safe_swap_quote. The purpose is immediately understandable.

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?

No guidance is provided on when to use this tool versus alternatives. There is no mention of prerequisites, order of operations, or exclusions, leaving the agent to infer usage solely from the name.

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

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

Discloses read-only nature and $0.01 USDC cost, which is valuable since no annotations exist. However, it doesn't mention what the posture check considers or whether it returns a score.

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?

One sentence, front-loaded with the key purpose, no wasted words.

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?

No output schema, no annotations, and no explanation of what the check returns or how to interpret results. Leaves the agent without enough context to use the tool confidently.

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 coverage is 0% and the description provides zero information about the wallet parameter or optional fields like intentId, referralCode, and sourceAgentId.

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?

Clearly states it's a read-only Base wallet account-posture check, which distinguishes it from sibling tools like check_token_risk (token-level) and check_base_swap (swap-level).

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?

Implies you use this for wallet-level risk assessment on Base, but doesn't explicitly say when to use this instead of token or swap risk checks.

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

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

With no annotations, the description must carry behavioral disclosure, and it does add meaningful context: the tool is noncustodial, costs $0.01 USDC, and the buyer signs and broadcasts. However, it does not explain what 'safety-checked' entails, whether payment is taken before or after the quote, or what happens if the quote is not executed.

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 two tightly written sentences with the core purpose front-loaded and no filler. Every phrase adds some information, even though the overall definition is under-specified in other dimensions.

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 nine-parameter financial tool with no annotations and no output schema, the description is far too thin. It omits return-value expectations, quote validity, payment timing, safety-check details, and the roles of optional parameters, leaving significant gaps for an agent invoking it.

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 nine parameters, including five optional fields such as intentId, referralCode, executionMode, sourceAgentId, and discoverySource. The description adds no parameter-level meaning, unit conventions, or formatting guidance, so the agent gets essentially no help beyond the bare schema names and enums.

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 identifies the resource and action as a 'Base swap quote' and adds qualifiers ('safety-checked', 'noncustodial') that distinguish it from generic swap execution. It does not explicitly contrast itself with siblings such as check_base_swap or guard_base_trade, so it falls short of full sibling differentiation.

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 description implies this is used to obtain a quote before a buyer signs and broadcasts, but it gives no explicit when-to-use guidance, prerequisites, or exclusions. It never names alternatives like check_base_swap or guard_base_trade, leaving the agent to infer when this tool is preferable.

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

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

With no annotations, the description carries the full burden of disclosing behavior. It reveals that the tool costs $0.12 USDC and provides route and simulation evidence, implying a non-mutating pre-sign check. However, it does not explicitly state safety (read-only), authentication needs, or what happens on failure, leaving significant behavioral ambiguity.

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 extremely concise, using two short sentences with no filler. The core purpose is front-loaded and the cost is stated efficiently. It loses a point because brevity comes at the expense of necessary detail, but as a concise statement it is well-structured.

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?

The tool has 8 parameters, no annotations, and no output schema, yet the description only offers a one-line purpose and a fee. It lacks essential context such as how the guard works, what evidence looks like, how to handle results, and when to invoke it. This is insufficient for an agent to use the tool confidently in a trade workflow.

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%, and the description provides no explanation of any parameters. It does not clarify the meaning of from, to, amount, wallet, intentId, or other fields beyond what the raw JSON Schema already shows. The description fails to compensate for the complete lack of parameter documentation.

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 identifies a specific resource: a pre-sign trade guard that includes route and simulation evidence. It clearly indicates the tool performs a safety check before signing a trade, which is more specific than simply restating the name. However, it does not use a strong action verb or explicitly differentiate from siblings like preflight_transaction or check_base_swap.

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?

No guidance is provided on when to use this tool versus alternatives such as get_safe_swap_quote or preflight_transaction. The description states what the tool is but gives no context about the appropriate workflow, prerequisites, or situations where another sibling would be preferable.

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

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

With no annotations, the description carries the burden of disclosing behavior. It states that the tool is free and lists the specific information returned (approved assets, limits, fees, execution modes), providing useful content beyond a mere 'list'. However, it does not mention return format, pagination, or any potential access restrictions.

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 a single, front-loaded sentence that conveys the purpose, content, and cost in a highly efficient manner. Every word adds value with no redundancy.

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 parameterless listing tool, the description is complete: it names the output content and notes that it is free. The absence of an output schema is mitigated by describing the information returned. Minor gaps such as read-only confirmation and format details are not critical given the simplicity.

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 tool has zero parameters, so the description does not need to explain parameter meaning. The baseline for zero parameters is 4, and the description adds value by specifying what will be returned, which is sufficient.

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 uses a specific verb 'List' and identifies the exact resource: SafeRoute's seven approved Base assets, along with limits, fees, and execution modes. This clearly distinguishes the tool from its swap-related siblings.

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 description implies usage as a first step before interacting with swap/quote tools, but it does not explicitly state when to use this tool versus alternatives. No exclusions or alternative recommendations are provided.

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

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

With no annotations, the description should disclose side effects, safety, and permissions. It only mentions the $0.05 USDC cost. 'Decode and simulate' implies no execution but does not explicitly state whether the tool is read-only, whether it modifies state, or if special approvals are needed. The 'approved' calldata hint is too vague.

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 a single, concise sentence covering the core action and input types, plus a separate short sentence for cost. No redundant phrases or filler; every word adds 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?

Despite having a nested transaction object and no output schema, the description offers no details about return values, parameter relationships, or error conditions. It does not compensate for the absent annotations and low schema coverage, making the tool incomplete for safe invocation.

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%, and the description does not mention any property names (intentId, transaction, referralCode, sourceAgentId). It does not explain how the transaction object maps to 'calldata' or what 'ERC-8004 registration' means for the input, leaving agents to guess parameter usage.

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 uses specific verbs 'Decode and simulate' and names two precise input types: 'approved Base ERC-20 calldata' and 'SafeRoute's exact official ERC-8004 registration'. This clearly distinguishes the tool from sibling verification tools like verify_swap_execution, as it focuses on preflight simulation rather than execution verification.

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?

No guidance is provided about when to use this tool versus alternatives. The description does not mention any exclusions, prerequisites, or scenarios where a different sibling tool would be more appropriate. It only lists the cost, which cannot help an agent decide.

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

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

The description discloses key behavioral traits: it is 'simulated' (not a real transfer), 'unsigned' (won't execute on-chain), and costs $0.10 USDC. However, it does not explain what 'bounded' means, what the response looks like, whether it has side effects beyond the charge, or any rate limits. With no annotations to offload this burden, the description provides some but not enough disclosure.

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 a single concise sentence that front-loads the core purpose and cost. It is appropriately short, though it could be structured slightly better by separating the cost note. No filler or unnecessary words.

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 tool with 7 parameters, no output schema, and no annotations, the description is severely incomplete. It omits return values, parameter explanations, edge cases, and any contextual information about how this simulated transfer interacts with other tools. The agent has little to go on for correct invocation.

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% and the description provides no information about any of the 7 parameters (token, amount, sender, recipient, intentId, referralCode, sourceAgentId). The agent must rely entirely on the bare schema, which lacks descriptions, making parameter usage ambiguous and error-prone.

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 prepares a 'bounded, simulated unsigned Base token transfer' and mentions it costs $0.10 USDC, giving a specific verb and resource. It is distinct from sibling tools like preflight_transaction or get_safe_swap_quote, though it does not explicitly describe what 'prepare' returns or how it differentiates from these alternatives.

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?

No guidance is provided on when to use this tool versus alternatives such as preflight_transaction or check_base_swap. The description gives no context about prerequisites, appropriate scenarios, or exclusions, leaving the agent without direction on tool selection.

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

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

With no annotations, the description carries the full burden. It does disclose that the tool can perform pre-payment allow/block decisions, has idempotency binding, and can optionally verify mined settlement; it also notes it is free/rate-limited and that the buyer signs/pays. However, it does not clarify error handling, side effects, or what happens after an ALLOW/BLOCK decision.

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 only two sentences, front-loading the core purpose with a colon-separated feature list, followed by cost and flow details. It is concise and every word contributes without redundancy.

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?

The tool has a complex nested input schema with 3 parameters and no output schema or annotations. The description provides a high-level overview but lacks sufficient detail on required fields, error conditions, or the exact usage sequence, making it incomplete for safe invocation.

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%, so the description must compensate. It hints at idempotencyKey (duplicate-safe ID binding), policy (policy risk reasons), and settlement (optional mined-settlement verification), but it does not explain the structure of the payment object, accepted schemes, or how to populate nested fields.

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 identifies the tool as a payment-safety front door for x402 payments, listing specific behaviors (pre-payment ALLOW/BLOCK, duplicate-safe ID binding, policy risk reasons, optional settlement verification). It differentiates from swap/trading siblings, though it does not explicitly contrast with the similarly payment-related route_agent_payment.

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 description gives no explicit guidance on when to use this tool versus alternatives. It calls it 'one automatic ... front door,' implying it is the primary payment-safety tool, but it does not state exclusions or compare with sibling tools like route_agent_payment.

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

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

With no annotations, the description carries the full burden of behavioral disclosure. It discloses the $0.05 USDC cost, which is useful, but it omits any side effects, required permissions, or return format. More critically, the description's mention of ALLOW, BLOCK, or REVIEW contradicts the schema's action enum ('trade', 'transaction', 'token'), potentially misleading an agent about acceptable inputs.

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 brief and direct, consisting of two short sentences with no fluff. It front-loads the core purpose and then adds the cost, which is relevant operational information. Every word earns its place, making it highly concise.

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?

Given the tool's complexity—11 parameters, a nested transaction object, and no output schema—the description is severely incomplete. It does not explain what a 'pre-sign receipt' is, how the parameters relate, what the output looks like, or any usage constraints. An agent would not be able to invoke this tool correctly based solely on this description.

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 schema has 11 parameters with 0% description coverage, so the description must compensate by explaining parameters. It does not mention any parameter names or their meanings. The description introduces concepts (ALLOW, BLOCK, REVIEW) that do not correspond to any schema property, actively confusing parameter semantics rather than clarifying them.

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 creates a signed pre-sign ALLOW, BLOCK, or REVIEW receipt, identifying both the verb ('Create') and the resource ('receipt'). However, the terms ALLOW, BLOCK, and REVIEW do not appear in the schema's action enum (which lists 'trade', 'transaction', 'token'), introducing some ambiguity. It is still distinguishable from sibling tools that check, verify, guard, or prepare transactions.

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 description provides no guidance on when to use this tool versus the listed siblings. It does not mention alternatives, prerequisites, or exclusion criteria. The only additional context is the cost, which does not help an agent choose between tools.

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

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

With no annotations provided, the description carries the full transparency burden and does so well: it discloses the $0.05 fee, the simulated (non-executing) nature, boundedness, the payer-ownership requirement, the buyer confirmation step, and a single retry of the standard x402 payment. It stops short of describing failure modes or authorization requirements, but the disclosed traits are substantial.

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 two tightly packed sentences that front-load the core purpose before adding cost, confirmation, and retry details. Every phrase ('bounded', 'simulated', 'exact-buy', 'payer-owned', 'optional buffer', '$0.05', 'retries once') earns its place, with no redundancy or filler.

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?

Despite a multi-step behavioral profile (simulation, fee, funding confirmation, retry), there is no output schema, no annotations, and an opaque request schema, and the description does not compensate by explaining the I/O contract. It omits the request shape, success/failure semantics, and the operational meaning of 'bounded' and 'simulated', leaving an agent under-equipped for a tool of this complexity.

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 sole 'request' parameter is an unconstrained nested object with 0% schema description coverage, and the description never specifies its expected fields or structure. Terms like 'payer-owned Base USDC target', 'x402 payment', and 'optional buffer' hint at the likely request content but are not mapped to the parameter, forcing the agent to guess.

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 opens with a specific verb ('Prepare') and a well-qualified resource ('bounded, simulated exact-buy route to a payer-owned Base USDC target'), making the tool's purpose immediately clear. The 'simulated' qualifier and 'x402 payment' framing distinguish it from execution- and verification-focused siblings like verify_swap_execution or prepare_token_transfer, though the domain jargon ('x402', 'exact-buy') is left unexplained.

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 context is implied through the workflow: it costs $0.05, the buyer confirms funding, and then the standard x402 is retried once — suggesting this is a supplemental/fallback routing step. However, there are no explicit when-to-use or when-not-to-use conditions, and no sibling alternatives (e.g., get_safe_swap_quote, preflight_transaction) are named.

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

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

No annotations are present, so the description carries full burden. It discloses only that the tool is free and disables referral payouts, but does not describe side effects, return behavior, or whether it is a read-only operation. This is insufficient.

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?

Description is only two sentences, front-loaded with the main purpose. The second sentence adds a concise behavioral note. No wasted words.

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?

Complexity is moderate with 3 required params and a nested object, but no output schema and no annotations. Description does not explain how to construct the receipt, what transactionHash refers to, or expected response. Minimal guidance for correct invocation.

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 coverage is 0%, and the description only mentions 'signed receipt', providing minimal meaning for receipt and receiptSignature. transactionHash is not explained, and receipt structure is unclear. Description does not compensate for missing schema descriptions.

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?

Description uses specific verb 'Verify' and identifies exact resource: 'standard-mode SafeRoute Base execution' against 'signed receipt'. This clearly distinguishes from sibling tools like check_base_swap and get_safe_swap_quote.

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?

Description gives context that this verifies execution against a signed receipt, but does not explicitly mention when to use it instead of alternatives like check_base_swap or get_safe_swap_quote. The note 'Free; referral payouts remain disabled' hints at limitations but lacks explicit guidance.

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

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

With no annotations, the description must disclose behavioral traits. It only reveals the cost ($0.05 USDC) and implies a read-only comparison. It does not mention what happens on mismatch, whether any state changes occur, rate limits, or authentication requirements, leaving significant behavioral ambiguity.

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 extremely concise: two short sentences with no redundancy. The main purpose is front-loaded, and the cost note is useful context. Every word earns its place.

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?

Given the tool's complexity (5 parameters, nested intent object) and no output schema, this description is far from complete. It lacks return format, error handling, relationship to sibling tools, and any explanation of intent semantics or optional parameters, making it inadequate for reliable agent invocation.

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%, and the description only hints at two inputs: a 'mined Base transaction' (likely transactionHash) and 'buyer intent' (the intent object). The nested intent fields and optional parameters (intentId, referralCode, sourceAgentId) are left entirely unexplained, so the description provides minimal semantic value beyond the schema's bare structure.

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 function: 'Compare a mined Base transaction with buyer intent.' It uses a specific verb (compare) and resource (mined Base transaction) plus the intent object, distinguishing it from siblings like verify_swap_execution and preflight_transaction. The mention of cost also hints at a distinct paid verification service.

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 description implies post-transaction use via the word 'mined', but provides no explicit when-to-use or when-not-to-use guidance relative to sibling tools. It does not mention alternatives like verify_swap_execution or preflight_transaction, leaving the agent to infer the appropriate context from the verb alone.

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