20 of the best prompts for detect function signature changes, step by step across 4 stages. Works with ChatGPT, Claude, and Gemini.
20 of the best prompts for detect function signature changes, step by step across 4 stages. Works with ChatGPT, Claude, and Gemini.
Published July 2, 2026
Getting Detect Function Signature Changes right takes more than a single prompt. This 4-stage guide covers Diagnose the Wall, Isolate and Fix, Verify the Resolution, and more, breaking the whole process into focused steps where each prompt builds on the last. When Bolt changes a function signature without updating all calling files, it leads to runtime errors that can block development. If left unaddressed, these errors can cascade into larger issues, causing significant delays. By following this guide, developers can ensure that function signatures remain consistent across their applications. Every prompt is optimized and runs in ChatGPT, Claude, and Gemini.
Look for runtime errors in the console that indicate a function signature mismatch. Pay attention to the specific file and line number where the error occurs.
Quote the Function Signature Change
Quote the original function signature from [FILE] at line [LINE] and provide the modified function signature you generated. Additionally, identify the specific line where the change occurred, and confirm that both signatures align with the expected format. Present your findings in a clear comparison format, highlighting any differences between the two signatures.
Paste the Error Message
Please provide the exact error message from the console that indicates a function signature issue. Analyze this message to identify which specific function calls are failing as a result of the signature change. Additionally, summarize the implications of these failures on the overall functionality of the API and suggest potential solutions to resolve the issues.
Interpret the Original Instruction
Please interpret the original instruction regarding the function signature for the [FUNCTION NAME]. Clearly state your understanding of what the expected signature should be, including the parameters and return type. Additionally, explain how this expected signature relates to the current implementation, highlighting any discrepancies or areas for improvement. Provide your response in a structured format, including a comparison between the expected and current signatures.
Expected vs. Actual Signature Behavior
Compare the expected function signature with the actual signature currently implemented for the [API NAME]. Clearly outline the expected parameters, including their types and any default values, as well as the expected return type. Additionally, provide a detailed analysis of any discrepancies between the expected and actual signatures, and suggest necessary modifications to align them. Format the output in a table for clarity.
Identify the Violated Rule
Please identify the specific rule or constraint that was violated by the signature change in the API contract. Quote the exact clause that outlines the expected signature format, and provide an explanation of why this violation is significant. Additionally, suggest potential solutions or adjustments that could be made to rectify the issue.
Target the specific function signature that has changed and needs to be reverted or updated. Focus on ensuring all references are consistent.
Revert Function Signature
Please revert the function signature at [FILE]:[LINE] to its original form. The original signature is: [PASTE]. The modified signature is: [PASTE]. Before applying the change, provide a diff that highlights the differences between the original and modified signatures.
Rewrite with Explicit Constraint
Rewrite the function located at [FILE] on line [LINE] to ensure it strictly adheres to the expected signature: [EXPECTED SIGNATURE]. Additionally, verify that all references to this function throughout the codebase are updated accordingly to reflect the new signature. Provide a summary of the changes made and any potential impacts on the surrounding code.
Scoped Change to Function Calls
Please update all calls to the function located at [FILE]:[LINE] to ensure they match the expected signature of [EXPECTED SIGNATURE]. Focus on modifying only the relevant files to maintain consistency across the codebase. After making the changes, provide a summary of the modifications made and any potential impacts on related functions.
Enforce Signature Format
Check the function signature at [FILE] on line [LINE] against the expected format of [EXPECTED FORMAT]. If the signature does not conform to this format, please correct it and provide the updated code snippet. Additionally, include a brief explanation of the changes made to ensure clarity on how the signature was adjusted.
Correct Import Dependencies
Verify that all import statements in the file located at [FILE] on line [LINE] correctly reference the updated function signature. If you find any outdated imports, please update them to align with the expected signature. Additionally, provide a brief summary of the changes made and any potential impact these corrections may have on the overall functionality of the code.
Confirm that the function signature issue has been resolved by checking for errors in the console. Look for successful execution of all function calls.
Run a Test for Function Calls
Please run the test suite for the function calls located at [FILE]:[LINE]. Ensure that all tests pass successfully and verify that there are no signature-related errors. Provide a summary of the test results, including any errors encountered and suggestions for resolving them if applicable.
Show the Diff of Changes
Please provide a detailed comparison of the changes made to the function located at [FILE]:[LINE]. Highlight the differences in the code, confirm that the function signature aligns with the expected format, and ensure that all references to this function throughout the codebase have been updated accordingly. Present the findings in a structured format, including a summary of the changes and any potential impacts on the overall functionality.
Replay Original Failing Scenario
Replay the original scenario that resulted in the function signature error for the [API NAME]. Provide a detailed account of the steps taken to reproduce the issue, including any relevant input data and configurations. After replaying the scenario, confirm whether the error persists and describe the application's behavior, noting any changes or improvements observed in its functionality.
Check Edge Cases for Regression
Identify and test edge cases related to the function at [FILE]:[LINE]. Please provide a detailed report on each edge case, including the expected behavior, the actual behavior observed during testing, and any discrepancies found. Additionally, suggest any necessary changes to ensure that all edge cases are handled correctly without introducing new signature issues. Format the report with clear headings for each edge case tested.
Confirm Output State
Please verify the output state of the function located at [FILE]:[LINE] after implementing the recent changes. Check that it returns the expected results and does not produce any errors. Provide a summary of your findings, including any discrepancies or issues encountered during the verification process.
Implement artefacts that prevent future issues with function signature changes. Focus on maintaining consistency across the codebase.
Function Signature Consistency Check
Draft a session-opening constraint for the project titled 'Function Signature Consistency Check.' Use the following structure: 'Before any function signature change, verify that all calling files are updated accordingly. If [TRIGGER] occurs, stop and [ACTION] before continuing. Never deploy without confirming signature consistency.' Ensure that the constraint is clear and actionable, providing specific examples of potential triggers and actions that should be taken.
Function Call Validation Template
Please create a validation template for function calls that includes the following instructions: For every function signature change, ensure that all instances in [SPECIFIC FILES] are updated accordingly. If any outdated instances are found, list them clearly and request confirmation from the user before proceeding with any further actions. Format the output as a checklist that can be easily followed.
Signature Change Notification Message
Draft a project specification message for the team regarding the notification process for changes in function signatures. The message should clearly state that the team must be notified whenever a function signature is altered. Additionally, include a detailed checklist that outlines the steps to ensure all dependent files are reviewed and updated accordingly. The checklist should cover aspects such as identifying affected files, updating documentation, and verifying functionality after changes.
Signature Format Enforcement Rule
Please create a naming convention message for enforcing function signature formats. The message should state: "All function signatures must follow the format [EXPECTED FORMAT]. Any deviation from this format must be documented and approved before implementation." Ensure the message is clear and emphasizes the importance of adherence to this rule for maintaining code quality and consistency.
Self-Check for Signature Updates
Generate a self-check request for the use-case of [USE-CASE] at the stage of [STAGE]. The request should include the instruction: 'Before finalizing any changes, confirm that all function signatures are consistent across the project.' Additionally, provide a detailed list of any discrepancies found and outline steps to resolve them before proceeding with the changes.
Changing a function signature without updating all references can lead to runtime errors in Bolt. This is because the tool may not automatically propagate changes to all calling files, resulting in broken functionality.
You can use the search functionality in Bolt to find all instances of a function signature. This helps ensure that any changes made are reflected in all relevant parts of the codebase.
If you encounter a signature mismatch error, check the console for the exact error message. This will help you identify which function calls are failing and require updates to align with the new signature.
Bolt does not automatically update function calls when a signature changes. Developers must manually ensure that all references are consistent to avoid runtime errors.
To prevent signature change issues, implement a verification process that checks all function signatures before deployment. This can include automated tests that confirm all references are updated accordingly.
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