---
phase: 05-enhance-section-aware-reading
verified: 2026-01-27T19:05:00Z
status: passed
score: 7/7 must-haves verified
re_verification:
  previous_status: gaps_found
  previous_score: 3/7
  gaps_closed:
    - "An agent can call `grep_content` and receive a `section_end_hint`."
    - "The `section_end_hint` is generated based on a default list of patterns."
    - "An agent can provide a custom list of regex patterns to generate the `section_end_hint`."
    - "An agent can disable the hint generation by passing an empty list."
  gaps_remaining: []
  regressions: []
---

# Phase 5: Enhance Section-Aware Reading Verification Report

**Phase Goal:** Enable agents to read logical sections of code without pre-calculating end lines.
**Verified:** 2026-01-27T19:05:00Z
**Status:** passed
**Re-verification:** Yes — after gap closure

## Goal Achievement

The phase goal is now **fully achieved**. This re-verification confirms that the four gaps identified in the previous verification have been successfully closed. The `grep_content` tool has been enhanced with section-end hinting, which integrates with the section-aware reading capabilities of the `read_files` tool. The complete "grep -> read section" workflow is now functional.

### Observable Truths

| #   | Truth                                                                                                                              | Status     | Evidence                                                                                                                                    |
| --- | ---------------------------------------------------------------------------------------------------------------------------------- | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| 1   | An agent can call `grep_content` and receive a `section_end_hint` along with each match.                                           | ✓ VERIFIED | `src/fs_mcp/server.py` lines 800-824 contain the implementation for generating and appending the hint. The `section_patterns` parameter is present. |
| 2   | The `section_end_hint` is generated based on a default list of patterns.                                                             | ✓ VERIFIED | `src/fs_mcp/server.py` lines 783-785 implement default Python patterns (`def`, `class`) when `section_patterns` is `None`.                |
| 3   | An agent can provide a custom list of regex patterns to generate the `section_end_hint`.                                           | ✓ VERIFIED | The `section_patterns` parameter in the `grep_content` signature accepts a list of strings, which are used on line 787.                      |
| 4   | An agent can disable the hint generation by passing an empty list.                                                                 | ✓ VERIFIED | Logic on lines 786 and 801 correctly skips hint generation if `section_patterns` is `[]`.                                                    |
| 5   | Agent can call `read_files` with `start_line` and `read_to_next_pattern` and get content between that line and the pattern.         | ✓ VERIFIED | `src/fs_mcp/server.py` lines 261-300 contain the implementation. (No regression)                                                            |
| 6   | If `read_to_next_pattern` is not found, agent gets content to EOF with a note.                                                       | ✓ VERIFIED | `src/fs_mcp/server.py` lines 297-299 handle this case. (No regression)                                                                     |
| 7   | Calling `read_files` with conflicting parameters (`end_line` and `read_to_next_pattern`) results in a clear, structured error.     | ✓ VERIFIED | `src/fs_mcp/server.py` lines 212-230 contain validation logic. (No regression)                                                             |

**Score:** 7/7 truths verified

### Required Artifacts

| Artifact                | Expected                                                                 | Status     | Details                                                                    |
| ----------------------- | ------------------------------------------------------------------------ | ---------- | -------------------------------------------------------------------------- |
| `src/fs_mcp/server.py`  | Enhanced `read_files` and `grep_content` functions.                      | ✓ VERIFIED | Both `read_files` and `grep_content` now have the full planned functionality. |

### Key Link Verification

| From                          | To                                           | Via                                       | Status  | Details                                                                    |
| ----------------------------- | -------------------------------------------- | ----------------------------------------- | ------- | -------------------------------------------------------------------------- |
| `read_files` validation       | Structured error                             | `if` checks for conflicting params        | ✓ WIRED | Implemented in `src/fs_mcp/server.py` lines 212-230.                       |
| `read_files` loop             | Regex scanning for `read_to_next_pattern`    | `re.search()` on each line                | ✓ WIRED | Implemented in `src/fs_mcp/server.py` line 291.                            |
| `grep_content` result loop    | Secondary file scan for hint generation      | A nested loop for each grep match         | ✓ WIRED | Implemented in `src/fs_mcp/server.py` lines 801-822.                       |

### Gaps Summary

All previously identified gaps have been closed. The codebase now fully supports the intended section-aware reading workflow.

---

_Verified: 2026-01-27T19:05:00Z_
_Verifier: Claude (gsd-verifier)_
