February 13: Friday Night Multi-Agent Architecture
A marathon session: 13 pull requests merged (2 features, 2 fixes, 1 docs, 3 refactors, 1 test, 4 maintenance). Test reliability improvements.
Developer Journal
Friday night coding from the couch — 7:53 PM, powered by an excellent afternoon nap. The composite wizard is getting closer to where it needs to be, shared screenshots showing progress.


Nearly midnight and instead of sleeping, designing a multi-agent architecture with multiple worktrees and Docker stacks that could be dynamically scaled. A previous attempt with just two Claude terminals hadn't gone well. The vision: agent teams with isolated environments, each with their own Docker stack. The reality: it would absolutely melt the laptop.

Highlights
#315 resolve analyzer warnings in thumbnail queue files
Fix 8 analyzer warnings (promoted to errors with --warnaserror) introduced in #314.
The dotnet build in the Docker container doesn't use --warnaserror, so these passed CI but fail the local compliance check.
#300 add lineage view thumbnails and fix thumbnail path bug
Add inline 48x48 thumbnails to lineage file cards and fix a critical bug where thumbnail generation was failing with 403 Forbidden due to absolute file paths being sent to the processing engine.
Thumbnail generation was completely broken — all 2,020 queued records failed silently. The ThumbnailService sent absolute paths (/app/data/mast/...) but the processing engine expects relative paths ...
What Changed
Features (2)
- #297 add automatic FITS thumbnail generation for dashboard cards
- #300 add lineage view thumbnails and fix thumbnail path bug
Bug Fixes (2)
- #294 enable E2E export tests with seed data and auth flow
- #315 resolve analyzer warnings in thumbnail queue files
Refactoring (3)
- #308 split JwstDataDashboard into focused view components
- #313 replace emoji indicators with SVG icons
- #314 replace fire-and-forget Task.Run with background task queue
Testing (1)
- #309 add synthetic and fixture-based thumbnail tests
Documentation (1)
- #316 update backend service documentation for thumbnail queue and missing services
Maintenance (4)
- #295 add issue link prompt to PR template
- #310 block commits on main and allow branch deletion in hooks
- #311 add branch cleanup script for squash-merge workflows
- #312 optimize CodeQL CI with path filtering and caching
Issues
Opened:
- #298 — fix: SeedDataService should assign Admin role to admin user
- #301 — fix: ImageViewer shows no metadata for mosaic-generated FITS files
- #302 — refactor: split JwstDataDashboard into separate view components
- #303 — refactor: extract shared MapToDataResponse and path resolution helpers
- #304 — test: add unit tests for ThumbnailService
- #305 — refactor: replace emoji indicators with SVG icons
- #306 — refactor: replace fire-and-forget Task.Run with proper background task queue
- #317 — Thumbnail generation fails for large FITS files (413 Request Entity Too Large)
Closed:
- #255 — Re-enable CodeQL Security Analysis
- #278 — Enable GitHub Branch Protection on Main
- #286 — E2E Export Tests Skipped — No Seed Data in CI
- #287 — Optimize CodeQL CI with Path Filtering and Caching
- #298 — fix: SeedDataService should assign Admin role to admin user
- #302 — refactor: split JwstDataDashboard into separate view components
- #305 — refactor: replace emoji indicators with SVG icons
- #306 — refactor: replace fire-and-forget Task.Run with proper background task queue
17 commits across 13 pull requests. Next: February 14, 2026 — use memory-efficient loading for thumbnail generat..., fix markdown table alignment across project docs, add language specifiers to fenced code blocks