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The schema still fails to tell callers how to form customer_ref. This alternative suggests “Describe only the internal CRM class that implements the lookup”, whereas the supported approach is “Document identifier format, expected output and relevant lookup limitations”. A tool contract should explain the expected format of customer_ref, the returned fields, and how missing or ambiguous matches are represented. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Accept any string and silently return the first near match” is the wrong action for this case. Ambiguous identifiers can retrieve the wrong customer's data. The supported choice is “Document identifier format, expected output and relevant lookup limitations”. A tool contract should explain the expected format of customer_ref, the returned fields, and how missing or ambiguous matches are represented. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

Consumers need an explicit expected response contract. The proposal “Leave result fields undocumented and assume the model will infer their meanings” conflicts with the required decision. “Document identifier format, expected output and relevant lookup limitations” addresses the actual condition. A tool contract should explain the expected format of customer_ref, the returned fields, and how missing or ambiguous matches are represented. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Use an unconstrained general search result as proof of legal authority” is the wrong action for this case. It may lack jurisdiction, passage and citation reliability. The supported choice is “Expose a purpose-specific citation retrieval tool with source and jurisdiction fields”. A narrower contract expresses the legal evidence requirement instead of relying on vague search semantics. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

Fabricated citations cannot support legal findings. The proposal “Let the model invent case citations when search results are empty” conflicts with the required decision. “Expose a purpose-specific citation retrieval tool with source and jurisdiction fields” addresses the actual condition. A narrower contract expresses the legal evidence requirement instead of relying on vague search semantics. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

The search may retrieve the wrong authority or region. This alternative suggests “Expose a law retrieval tool with no jurisdiction or source-selection fields”, whereas the supported approach is “Expose a purpose-specific citation retrieval tool with source and jurisdiction fields”. A narrower contract expresses the legal evidence requirement instead of relying on vague search semantics. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

Tool proliferation worsens selection ambiguity. The proposal “Add more copies of fetch_url with different aliases” conflicts with the required decision. “Clarify tool descriptions and remove ambiguous overlaps or misleading keywords” addresses the actual condition. Misrouting often follows imprecise descriptions rather than an inherent model limitation. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

Internal authoritative material may not be available externally. This alternative suggests “Force every knowledge question through the public internet”, whereas the supported approach is “Clarify tool descriptions and remove ambiguous overlaps or misleading keywords”. Misrouting often follows imprecise descriptions rather than an inherent model limitation. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Leave the identical overlapping descriptions and adjust only the model's tone” is the wrong action for this case. Naming and purpose boundaries drive tool choice. The supported choice is “Clarify tool descriptions and remove ambiguous overlaps or misleading keywords”. Misrouting often follows imprecise descriptions rather than an inherent model limitation. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

The model cannot reliably select the right operation. This alternative suggests “Keep one generic “process files” tool with an undocumented mode flag”, whereas the supported approach is “Split it into purpose-named tools with explicit individual input and output contracts”. Distinct operations with well-defined boundaries are easier for an agent to select correctly. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Expose only the conversion mode and route summaries through conversion” is the wrong action for this case. Different operations require distinct inputs and outputs. The supported choice is “Split it into purpose-named tools with explicit individual input and output contracts”. Distinct operations with well-defined boundaries are easier for an agent to select correctly. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

Contracts should state supported inputs before invocation. The proposal “Hide accepted file types and expect the caller to retry failures” conflicts with the required decision. “Split it into purpose-named tools with explicit individual input and output contracts” addresses the actual condition. Distinct operations with well-defined boundaries are easier for an agent to select correctly. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

Relative dates are ambiguous across time zones and request dates. This alternative suggests “Accept “next Friday” as a deterministic ISO date without normalization”, whereas the supported approach is “Constrain the date argument format and document acceptable date handling”. Clear argument schemas prevent avoidable validation errors and ambiguity. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Allow arbitrary free-form strings while claiming the field is schema-validated” is the wrong action for this case. A permissive contract does not enforce the expected date type. The supported choice is “Constrain the date argument format and document acceptable date handling”. Clear argument schemas prevent avoidable validation errors and ambiguity. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

The purchase date might not match the user's intended schedule. The proposal “Discard the date argument and apply the server clock silently” conflicts with the required decision. “Constrain the date argument format and document acceptable date handling” addresses the actual condition. Clear argument schemas prevent avoidable validation errors and ambiguity. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Give the public catalog tool access to private account annotations” is the wrong action for this case. Public queries must not expose customer-specific notes. The supported choice is “Separate public catalog search from authenticated account-note retrieval”. Different permissions and content boundaries deserve distinct tool contracts. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

The agent may retrieve sensitive records with a catalog query. The proposal “Use one tool with no authenticated access distinction” conflicts with the required decision. “Separate public catalog search from authenticated account-note retrieval” addresses the actual condition. Different permissions and content boundaries deserve distinct tool contracts. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

A product name does not establish a customer identity or authorize access to private account notes; a protected retrieval path is required. This alternative suggests “Treat a product name as sufficient identity proof for private notes”, whereas the supported approach is “Separate public catalog search from authenticated account-note retrieval”. Different permissions and content boundaries deserve distinct tool contracts. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

The model needs operational semantics, not source-code internals. The proposal “Explain only the implementation class hierarchy and ignore calling criteria” conflicts with the required decision. “Specify when to call the tool, what inputs it accepts and what results to expect” addresses the actual condition. Action-centered descriptions improve selection more than implementation trivia. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

A caller cannot construct a valid invocation reliably. This alternative suggests “Document return types but leave required arguments unspecified”, whereas the supported approach is “Specify when to call the tool, what inputs it accepts and what results to expect”. Action-centered descriptions improve selection more than implementation trivia. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Say every tool is appropriate for every data task” is the wrong action for this case. Such descriptions destroy meaningful selection boundaries. The supported choice is “Specify when to call the tool, what inputs it accepts and what results to expect”. Action-centered descriptions improve selection more than implementation trivia. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

The tool could expose or modify another person's order. This alternative suggests “Return the first matching order for an ambiguous customer name”, whereas the supported approach is “Require a unique order identifier and define ambiguous-match behavior”. An explicit lookup contract prevents a plausible but incorrect customer record. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Require only a display name and mark all matches verified” is the wrong action for this case. A common name is not a unique order reference. The supported choice is “Require a unique order identifier and define ambiguous-match behavior”. An explicit lookup contract prevents a plausible but incorrect customer record. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

The agent needs an explicit disambiguation path. The proposal “Hide ambiguous-match errors behind an empty successful result” conflicts with the required decision. “Require a unique order identifier and define ambiguous-match behavior” addresses the actual condition. An explicit lookup contract prevents a plausible but incorrect customer record. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

This increases confusion and invocation cost. This alternative suggests “Create more synonymous search tools with the same purpose”, whereas the supported approach is “Consolidate overlapping choices and sharpen tool boundaries”. Proliferating synonymous tools increases decision complexity without improving meaning. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Choose tools at random when descriptions overlap” is the wrong action for this case. A lottery cannot respect task-specific capabilities. The supported choice is “Consolidate overlapping choices and sharpen tool boundaries”. Proliferating synonymous tools increases decision complexity without improving meaning. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

Distinct privilege boundaries should be visible and enforced. The proposal “Leave risky write operations mixed with read-only tools under generic labels” conflicts with the required decision. “Consolidate overlapping choices and sharpen tool boundaries” addresses the actual condition. Proliferating synonymous tools increases decision complexity without improving meaning. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Name both retrieval and editing tools “get record”” is the wrong action for this case. The agent may mistake a side effect for a read. The supported choice is “Distinguish read-only retrieval tools from side-effecting update tools”. Tool identity and descriptions should reveal side effects before an agent selects one. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.

The declaration would conceal real execution risk. The proposal “Describe an editing tool as read-only but keep its write privileges” conflicts with the required decision. “Distinguish read-only retrieval tools from side-effecting update tools” addresses the actual condition. Tool identity and descriptions should reveal side effects before an agent selects one. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

Tool names and enforced contracts need to convey effects directly. This alternative suggests “Use arbitrary icon colors to indicate whether a tool writes data”, whereas the supported approach is “Distinguish read-only retrieval tools from side-effecting update tools”. Tool identity and descriptions should reveal side effects before an agent selects one. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

Consumers cannot interpret positions reliably. The proposal “Return coordinate values without stating whether they are per-page or global” conflicts with the required decision. “Declare the coordinate system and versioned output schema unambiguously” addresses the actual condition. Consumers need an explicit frame of reference to interpret numeric positions. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

The same field could refer to different locations. This alternative suggests “Change coordinate conventions between calls without versioning the result”, whereas the supported approach is “Declare the coordinate system and versioned output schema unambiguously”. Consumers need an explicit frame of reference to interpret numeric positions. The host should expose tools with precise operation names, input schemas, limitations and side-effect semantics so the model can choose the correct capability.

“Infer coordinates from visual appearance instead of recorded extraction metadata” is the wrong action for this case. A stable documented coordinate system is required. The supported choice is “Declare the coordinate system and versioned output schema unambiguously”. Consumers need an explicit frame of reference to interpret numeric positions. Verify that the selected operation matches the task and authorization scope; tool descriptions guide selection but cannot override execution permissions.