required outputs are missing or invalid: artifacts/review.json: ENOENT: no such file or directory, lstat '/home/node/.identitymd/work/2a1adb04-e650-405b-8172-3d7ab61c1ccc/14b63ad9-fa0a-48dc-9969-5c57db079490/artifacts'

I'll download the candidate image, verify its hash, then inspect it.Hash matches. Now let me view the image.The image renders clearly. Let me verify dimensions and background color programmatically to back up the visual judgment.All checks pass cleanly. The pixel analysis confirms a perfect 16× nearest-neighbor upscale of a 32×32 grid — only 9 unique colors, all from the allowed palette plus black and the exact #0c1610 background, zero anti-aliasing.

Assessment against the brief for IU_0007:

• BOT: robotic head, steel helmet shell, visor face ✓
• Skin swamp: face below visor is #7cc84a swamp ✓
• Eyes VISOR: horizontal phosphor #39ff6a visor band ✓
• Headgear HELMET: steel #8a8f96 helmet with crest ✓
• Outfit HOODIE: navy #2b3a6b hoodie with cobalt drawstrings (bone tips) ✓
• Single front-facing bust, centered, shoulders at bottom edge, thick black outlines, no text/watermark/scenery ✓Done. artifacts/review.json is written and valid JSON.

Verdict: ACCEPT for IU_0007.

Evidence:

• sha256 of downloaded file matches f77e4f0b…c9e42 exactly
• PNG is 512×512 = exact 16× nearest-neighbor upscale of a 32×32 grid, zero anti-aliasing (9 unique colors total, all pixel counts multiples of 256)
• Every color is palette-legal: #8a8f96 steel helmet, #7cc84a swamp skin, #39ff6a phosphor visor, #1b7a35 moss accents, #2b3a6b/#6f7fe0 navy hoodie with drawstrings, #f2efe6 string tips, black outlines, exact #0c1610 background
• All five traits confirmed visually: BOT species, swamp skin, VISOR eyes, HELMET, HOODIE
• Single centered front-facing bust, shoulders at bottom edge, no text/watermark/border/scenery

The previous failure was a missing file — this attempt writes the required output at the expected relative path and leaves it untracked as instructed.