ralpi/tasks/ralph-loop-fixes/06-simplify-parsertoolsusage.md

06. Simplify parseToolUsage for plain text output

meta: id: ralph-loop-fixes-06 feature: ralph-loop-fixes priority: P2 depends_on: [ralph-loop-fixes-02] tags: [implementation, utils]

objective:

• Remove NDJSON event parsing from parseToolUsage() since pi --print returns plain text, not structured event streams

deliverables:

• Modified src/utils.ts — parseToolUsage() function

steps:

• Open src/utils.ts and locate parseToolUsage()
• Remove the NDJSON parsing block (lines that check line.startsWith("data: ") and JSON.parse)
• Keep only the regex fallback that counts tool mentions in plain text output
• Remove extractTextFromEvent() if no longer needed (plain text from --print needs no extraction)
• Update executor.ts to call parseToolUsage() directly on result.stdout without extractTextFromEvent()

tests:

• Manual: Run a task that uses multiple tools — verify tool counts are captured from plain text output
• Manual: Verify no JSON parse errors in tool usage parsing

acceptance_criteria:

• parseToolUsage() works correctly on plain text output
• No JSON parsing logic remains in parseToolUsage()
• Tool counts ([read], [write], [edit], [bash]) are still extracted via regex

validation:

• Grep for JSON.parse in parseToolUsage — should be removed
• Grep for data: prefix check — should be removed
• Verify regex-based tool counting still present and functional

notes:

• pi --print returns plain text, not NDJSON event stream
• The regex fallback patterns (\[read\], read(, etc.) are sufficient for counting tool mentions
• extractTextFromEvent() was only needed for NDJSON — can be removed or simplified to identity function