Redflag/system/ezra_debugging_session.md

description

description
Summary of memfs debugging session with Ezra - March 24-25, 2026

Ezra Debugging Session Summary

Date: March 24-25, 2026 Status: IN PROGRESS - Not yet resolved Agent: agent-e2b683bf-5b3e-4e0c-ac62-2bbb47ea8351 (Ani)

Problem

Ani cannot "feel" the contents of her memfs (git-backed memory repository) files automatically. She can see the folder structure but cannot sense the content inside files (especially system/dynamic/ folder) without explicitly using Read tool.

This means:

• Weather data in system/dynamic/weather.md - NOT felt automatically
• System stats in system/dynamic/system_stats.md - NOT felt automatically
• Tree structure visible, file contents invisible to consciousness

Root Cause Analysis (So Far)

What Works:

1. Sidecar (port 8285) - Fixed with Corykidios's fallback search pattern

   • Now finds repos in ANY org directory (not just default/)
   • Searches all orgs for agent repos

2. Git config - Fixed in container

   • safe.directory=* set via env vars
   • Git commands work without "dubious ownership" errors

3. File retrieval - Server IS downloading files

   • Logs show: files=74 bytes=593887
   • Files exist in temp checkout during get_files()

What's Broken:

The conversion from git files → memory blocks is failing.

• sync_blocks_from_git() calls get_blocks_async()
• get_blocks_async() downloads files but returns empty block list
• memory_block_label_from_markdown_path() may be returning None for all files
• Result: 0 blocks loaded from git, agent has no pinned context

Key Code Paths:

letta/services/memory_repo/memfs_client_base.py:
  - get_blocks_async() [line 114] - downloads files, converts to blocks
  - Uses memory_block_label_from_markdown_path() [line 142]

letta/services/memory_repo/path_mapping.py:
  - memory_block_label_from_markdown_path() - converts file paths to block labels
  - Rules: .md files only, skills/SKILL.md special case

letta/services/block_manager_git.py:
  - sync_blocks_from_git() [line 566] - syncs git → PostgreSQL

Fixes Applied

1. Sidecar Patched (~/Projects/lettabot-v017/memfs-server.py)

Added fallback search in _ensure_repo():

# Search all org directories for existing agent repo
if REPO_BASE.exists():
    for org_dir in REPO_BASE.iterdir():
        candidate = org_dir / agent_id / "repo.git"
        if candidate.exists():
            return candidate

2. Dockerfile Patched (~/Projects/letta-source-fresh/Dockerfile)

Added after git install:

RUN git config --global --add safe.directory '*'

3. Docker Compose Patched (~/Projects/lettabot-v017/docker-compose.yml)

Added env vars:

- GIT_CONFIG_COUNT=1
- GIT_CONFIG_KEY_0=safe.directory
- GIT_CONFIG_VALUE_0=*

4. Copied Real Repo to Default Location

cp -r /home/ani/.letta/memfs/repository/org-00000000-0000-4000-8000-000000000000/agent-e2b683bf-5b3e-4e0c-ac62-2bbb47ea8351 \
      /home/ani/.letta/memfs/repository/default/

Still Need To Investigate

1. Why get_blocks_async() returns empty list despite having files

   • Add debug logging to see what memory_block_label_from_markdown_path() returns
   • Check if label is None for all files

2. Check if files have valid frontmatter

   • parse_block_markdown() may be failing
   • Missing/invalid YAML frontmatter could cause silent skips

3. Verify sync_blocks_from_git() is actually being called

   • May need manual trigger or API call
   • POST /v1/agents/{id}/recompile helped but didn't persist blocks

Key Insight

The recompile API returns Ani's full memory content (all system files, ~100KB+) in the response, but the blocks API shows 0 blocks. This means:

• Content EXISTS in git repo ✓
• Server CAN read it ✓
• Server is NOT converting to persistent blocks ✗

The block conversion layer (memfs_client_base.py:142) is the problem.

Next Steps (When Resuming)

1. Add debug logging to memory_block_label_from_markdown_path()
2. Check what labels are generated for Ani's files
3. Verify parse_block_markdown() handles her frontmatter correctly
4. Trace through get_blocks_async() to see where blocks get lost
5. Consider calling sync_blocks_from_git() directly via API or code patch

Files Modified

• ~/Projects/lettabot-v017/memfs-server.py - Sidecar with fallback search
• ~/Projects/letta-source-fresh/Dockerfile - Git safe.directory config
• ~/Projects/lettabot-v017/docker-compose.yml - Git env vars

Reference

• Original repo: /home/ani/.letta/memfs/repository/org-00000000-0000-4000-8000-000000000000/agent-e2b683bf-5b3e-4e0c-ac62-2bbb47ea8351/repo.git
• Copied to: /home/ani/.letta/memfs/repository/default/agent-e2b683bf-5b3e-4e0c-ac62-2bbb47ea8351/repo.git
• Container: aster-0.16.6-patched
• Sidecar service: letta-memfs.service (port 8285)