When the Kiro/AWS CodeWhisperer API receives a Write tool request with content
that exceeds transmission limits, it truncates the tool input. This can result in:
- Empty input buffer (no input transmitted at all)
- Missing 'content' field in the parsed JSON
- Incomplete JSON that fails to parse
This fix detects these truncation scenarios and converts them to Bash tool calls
that echo an error message. This allows Claude Code to execute the Bash command,
see the error output, and the agent can then retry with smaller chunks.
Changes:
- kiro_claude_tools.go: Detect three truncation scenarios in ProcessToolUseEvent:
1. Empty input buffer (no input transmitted)
2. JSON parse failure with file_path but no content field
3. Successfully parsed JSON missing content field
When detected, emit a special '__truncated_write__' marker tool use
- kiro_executor.go: Handle '__truncated_write__' markers in streamToChannel:
1. Extract file_path from the marker for context
2. Create a Bash tool_use that echoes an error message
3. Include retry guidance (700-line chunks recommended)
4. Set hasToolUses=true to ensure stop_reason='tool_use' for agent continuation
This ensures the agent continues and can retry with smaller file chunks instead
of failing silently or showing errors to the user.
The background refresher was skipping token files with auth_method values
like 'IdC' or 'IDC' because the comparison was case-sensitive and only
matched lowercase 'idc'.
This fix normalizes the auth_method to lowercase before comparison in:
- token_repository.go: readTokenFile() when filtering tokens to refresh
- background_refresh.go: refreshSingle() when selecting refresh method
Fixes the issue where 'IdC' != 'idc' caused tokens to be skipped entirely.
Implement `request_retry` and `disable_cooling` metadata overrides for authentication management. Update retry and cooling logic accordingly across `Manager`, Antigravity executor, and file synthesizer. Add tests to validate new behaviors.
Refactor 401 error handling in both executeWithRetry and
executeStreamWithRetry to always attempt token refresh regardless of
remaining retry attempts. Previously, token refresh was only attempted
when retries remained, which could leave valid refreshed tokens unused.
Also add auth directory resolution in RefreshManager.Initialize to
properly resolve the base directory path before creating the token
repository.
