---
phase: 05-enhance-section-aware-reading
plan: 2
subsystem: agent-tools
tags: [grep, section-aware-reading, ripgrep]

# Dependency graph
requires:
  - phase: 05-enhance-section-aware-reading
    provides: "Enhanced read_files for section-aware reading"
provides:
  - "Enhanced grep_content function with section end hinting"
affects: ["agent-workflows"]

# Tech tracking
tech-stack:
  added: []
  patterns: ["file-scanning-for-hints"]

key-files:
  created: []
  modified: ["src/fs_mcp/server.py"]

key-decisions:
  - "Default patterns for Python section hints to provide out-of-the-box utility."
  - "Allow disabling hints with an empty list `[]` for flexibility."
  - "Suppress hint generation errors to ensure core grep functionality is never broken by the enhancement."

patterns-established:
  - "Hint generation in search tools to guide subsequent actions."

# Metrics
duration: 
completed: 2026-01-27
---

# Phase 5 Plan 2: Re-implement Section End Hinting Summary

**Re-implemented section end hinting in the `grep_content` tool to restore the 'grep -> read section' workflow, enabling agents to intelligently read logical blocks of code.**

## Performance

- **Duration:** 5 min
- **Started:** 2026-01-27T12:00:00Z
- **Completed:** 2026-01-27T12:05:00Z
- **Tasks:** 1
- **Files modified:** 1

## Accomplishments
- The `grep_content` tool now includes a `section_end_hint` in its output, suggesting the end line of a code block.
- The feature is configurable, supporting default patterns for Python, custom user-supplied regex patterns, and the ability to be disabled.
- The core "grep -> read section" workflow, a key goal of Phase 5, is now fully functional.
- All four previously failed verification truths for this feature are now addressed.

## Task Commits

Each task was committed atomically:

1. **Task 1: Re-implement Section End Hinting in `grep_content`** - `2c48ace` (feat)

## Files Created/Modified
- `src/fs_mcp/server.py` - Modified the `grep_content` function to add the hint generation logic.

## Decisions Made
- Used a default list of patterns (`r'^\\s*def '`, `r'^\\s*class '`) for Python to make the feature immediately useful without configuration.
- Made the feature skippable by passing an empty list (`[]`) to `section_patterns`, ensuring agents can opt-out if needed.
- Wrapped the hint generation in a `try...except` block to guarantee that any errors in the hinting logic (e.g., file not found, regex error) will not disrupt the primary `grep_content` functionality.

## Deviations from Plan
None - plan executed exactly as written.

## Issues Encountered
None.

## Next Phase Readiness
The `grep_content` tool is now fully integrated with the section-aware reading capabilities of `read_files`, making the agent's codebase exploration workflow significantly more efficient. The project is ready to proceed to the next phase or be considered complete.
