Drawing Analyzer
Splits construction drawing PDFs into per-sheet indexes and measures areas
Test report
- Verdict
- Tested · Works
- Score
- Tested
- Jul 28, 2026
- Environment
- Claude Code 2.x (agent harness)
- Upstream re-checked
- Jul 30, 2026 · af440f7
⚠ This skill is no longer available upstream. Our re-check on Aug 10, 2026 couldn't find it any more (repo unreachable/deleted). The test below is what we measured on Jul 28, 2026 and we're leaving it up as a record — but there is nothing left to install, so we've removed the command.
Ran the bundled scripts on a real 4-sheet drawing set: extract_polygons.py measured the ground-floor slab at exactly 20.0 m x 12.0 m = 240.0 m2, matching the drawn geometry, and independently counted 12 footings on the foundation plan as 4 at 0.9 m and 8 at 0.6 m, the same split the footing schedule states. The no-skill baseline (reading the merged PDF text) also got the footing counts but had to guess the slab size from loose 20000/12000 annotations while a conflicting 14000 x 9000 appeared on another sheet. After the one-time split, answering the slab question needed 843 bytes of targeted sheet text plus the polygon report instead of the 166 KB of rendered pages the baseline reads. Documentation is the weak spot: neither README install route works, since the repo has no GitHub releases for the .skill file and the clone URL is still a YOUR-USERNAME placeholder, and SKILL.md tells Claude to run scripts/split_drawings.py with no arguments, which exits 1.
Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works
- Installs cleanly 5/5
- Triggers reliably 5/5
- Output vs. baseline 7/10
- Docs & honesty 3/5
What Drawing Analyzer does
Splits a merged construction drawing PDF into individual sheets, extracts each sheet's text layer and a rendered image, and builds classification, cross-reference and symbol indexes so later questions read one sheet instead of the whole set. A bundled polygon extractor converts vector geometry to real-world areas using the drawing scale. Triggers on construction drawings, drawing sets, plans, takeoffs, footing counts and slab area questions.
How to install Drawing Analyzer
Nothing to install: the source repository no longer has this skill. If the author brings it back, our daily re-check will pick it up and the command will reappear here.
Commands — how to trigger Drawing Analyzer
-
/drawing-analyzerSplits construction drawing PDFs into per-sheet indexes and measures areas
It also activates on plain-language prompts like these:
-
What is the ground floor slab area in square meters on this drawing set? -
Split this merged construction drawing PDF into indexed sheets for me -
How many F2 footings are on the foundation plan and what size are they?
Frequently asked questions
- Is the Drawing Analyzer skill free?
- Yes. The skill itself is free from hamzaabduljabbar/construction-drawing-analyzer. SkillProof publishes the install command and an independent test verdict at no cost.
- Does Drawing Analyzer work with Claude Code?
- We tested it with Claude Code 2.x (agent harness) on Jul 28, 2026. Verdict: Tested · Works. Ran the bundled scripts on a real 4-sheet drawing set: extract_polygons.py measured the ground-floor slab at exactly 20.0 m x 12.0 m = 240.0 m2, matching the drawn geometry, and independently counted 12 footings on the foundation plan as 4 at 0.9 m and 8 at 0.6 m, the same split the footing schedule states. The no-skill baseline (reading the merged PDF text) also got the footing counts but had to guess the slab size from loose 20000/12000 annotations while a conflicting 14000 x 9000 appeared on another sheet. After the one-time split, answering the slab question needed 843 bytes of targeted sheet text plus the polygon report instead of the 166 KB of rendered pages the baseline reads. Documentation is the weak spot: neither README install route works, since the repo has no GitHub releases for the .skill file and the clone URL is still a YOUR-USERNAME placeholder, and SKILL.md tells Claude to run scripts/split_drawings.py with no arguments, which exits 1.
- What is the Drawing Analyzer SkillProof Score?
- 8.0/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 3/5.
- How do I install Drawing Analyzer?
- Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
- Can I use Drawing Analyzer with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
- The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.