set_breakpoint
Sets a debugger breakpoint at a specified line in a Chrome tab to pause execution and debug code paths. Requires an active tab and loaded script; returns breakpoint identifier.
Instructions
Sets a debugger breakpoint at a specific location, pausing execution when reached. Side effects: modifies debugger state (breakpoint added until removed). Prerequisites: requires an active Chrome tab; target script must be loaded. Returns: breakpoint identifier and location confirmation. Use this to debug specific code paths. Alternatives: 'pause_on_load' for early script execution, 'search_scripts' to find scripts by pattern.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| url | No | Script URL to match. Constraints: one of 'script_hash', 'script_id', or 'url' must be provided. Interactions: mutually exclusive with 'script_hash' and 'script_id'. Defaults to: None. | |
| script_id | No | Script ID (from Debugger.scriptParsed event). Constraints: one of 'script_hash', 'script_id', or 'url' must be provided. Interactions: mutually exclusive with 'script_hash' and 'url' (first match wins). Defaults to: None. | |
| line_number | Yes | Line number where breakpoint is set (0-indexed). Constraints: non-negative integer, must be within script bounds. Interactions: required parameter; combined with 'column_number' to pinpoint exact location. | |
| script_hash | No | Script hash to identify the target script. Constraints: one of 'script_hash', 'script_id', or 'url' must be provided. Defaults to: None. | |
| column_number | No | Column number within the line. Constraints: non-negative integer. Interactions: optional; narrower precision if provided. Defaults to: start of line (0). |