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February 7: Phase Four Complete

A marathon session: 20 pull requests merged (7 features, 6 fixes, 7 docs). Major work on the composite imaging pipeline.

Developer Journal

Saturday session — Phase 4 finished the day before, now making small changes and finding bugs. 210 PRs closed to date. The Claude CLI updated at least twice during the session (2.1.34 → 2.1.36 → 2.1.37), with version 35 presumably landing overnight. Hard to keep track of features across the CLI, desktop app, and phone app when all three are getting daily updates.

Feature comparison table across Claude CLI, Desktop Code Tab, Cowork Tab, Chat Tab, and iOS App

Connected the GitHub project to the Claude mobile app's cloud environment — the idea being to capture feature ideas and quick thoughts from the phone using Sonnet. Found a good 3-image set to composite that produced an ok result; swapping the channel order improved it. Mosaic and composite both work individually, but the composite is still limited to 3 channels (R/G/B) — not enough for the multi-filter NASA-quality images.

GitHub PR list showing 210 closed PRs including recent bug fixes and the collapsible sidebar feature

JWST 3-channel RGB composite of a nebula region showing green-tinted gas and dust structures

Same JWST composite with swapped channel order showing warmer orange-brown tones

Highlights

#176 Disable seed users in production, refresh downloads panel, fix mosaic export button (#90, #91, #92)

Three independent quick fixes bundled into a single PR:

#173 Sort mosaic file selection by processing level (lineage order)

  • Sort the Mosaic Wizard file selection grid by JWST processing level (lineage order): L1 (raw/uncal) → L2a (rate/rateints) → L2b (calibrated) → L3 (combined) → unknown
  • Add color-coded processing level badges next to each filename for visual grouping
  • Secondary sort by filename within each level ...

What Changed

Features (7)

  • #173 Sort mosaic file selection by processing level (lineage order)
  • #175 Image comparison/blink mode (C3)
  • #178 Add interactive curves/levels adjustment to FITS viewer (C4)
  • #180 Add WCS coordinate grid overlay to FITS viewer (D3)
  • #181 Add annotation tools to FITS viewer (D5)
  • #183 Add angular scale bar to FITS viewer (D4)
  • #208 Add AVM metadata embedding on export (D6)

Bug Fixes (6)

  • #174 Pin Docker image versions for reproducible builds (Task #62)
  • #176 Disable seed users in production, refresh downloads panel, fix mosaic export button (#90, #91, #92)
  • #177 Prevent concurrent resume of same download job (#66)
  • #182 Resolve 14 pre-existing ESLint warnings
  • #207 Resolve all backend build warnings (SA1516, CA1848)
  • #209 Reorder backend members per StyleCop SA1202/SA1204 (Tech Debt #77+#78)

Documentation (7)

  • #179 Update tracking docs for session 2026-02-07
  • #184 Update development plan for D3, D4, D5 completion
  • #185 Update CLAUDE.md with comprehensive current state
  • #204 Slim CLAUDE.md from 50KB to 26KB, add cloud session instructions
  • #205 Reorganize tech-debt.md into ordered sections
  • #206 Rewrite setup guide to match current project state
  • #210 Update tracking docs for session 2026-02-07

63 commits across 20 pull requests. Next: February 8, 2026 — Make metadata sidebar panel collapsible, Guard curves canvas against crash during level adj..., Curves overlay disappears when switching from Line...