tool updates

packages/opencode/src/tool/multiedit.txt

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+This is a tool for making multiple edits to a single file in one operation. It is built on top of the Edit tool and allows you to perform multiple find-and-replace operations efficiently. Prefer this tool over the Edit tool when you need to make multiple edits to the same file.
+
+Before using this tool:
+
+1. Use the Read tool to understand the file's contents and context
+2. Verify the directory path is correct
+
+To make multiple file edits, provide the following:
+1. file_path: The absolute path to the file to modify (must be absolute, not relative)
+2. edits: An array of edit operations to perform, where each edit contains:
+   - old_string: The text to replace (must match the file contents exactly, including all whitespace and indentation)
+   - new_string: The edited text to replace the old_string
+   - replace_all: Replace all occurences of old_string. This parameter is optional and defaults to false.
+
+IMPORTANT:
+- All edits are applied in sequence, in the order they are provided
+- Each edit operates on the result of the previous edit
+- All edits must be valid for the operation to succeed - if any edit fails, none will be applied
+- This tool is ideal when you need to make several changes to different parts of the same file
+
+CRITICAL REQUIREMENTS:
+1. All edits follow the same requirements as the single Edit tool
+2. The edits are atomic - either all succeed or none are applied
+3. Plan your edits carefully to avoid conflicts between sequential operations
+
+WARNING:
+- The tool will fail if edits.old_string doesn't match the file contents exactly (including whitespace)
+- The tool will fail if edits.old_string and edits.new_string are the same
+- Since edits are applied in sequence, ensure that earlier edits don't affect the text that later edits are trying to find
+
+When making edits:
+- Ensure all edits result in idiomatic, correct code
+- Do not leave the code in a broken state
+- Always use absolute file paths (starting with /)
+- Only use emojis if the user explicitly requests it. Avoid adding emojis to files unless asked.
+- Use replace_all for replacing and renaming strings across the file. This parameter is useful if you want to rename a variable for instance.
+
+If you want to create a new file, use:
+- A new file path, including dir name if needed
+- First edit: empty old_string and the new file's contents as new_string
+- Subsequent edits: normal edit operations on the created content