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Improve apc-optimizer, the verified circuit optimizer. Use when asked to make the optimizer more effective or to run an autoopt iteration.
Claude Skills are markdown + scripts loaded into Claude Code; scanned with the same pipeline.
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
1 critical finding reported by cisco-skill-scanner, 0 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
Claude Skills install to a single target, no runtime picker.
nerlo install -- 'powdr-labs/apc-optimizer (autoopt)'
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- 'powdr-labs/apc-optimizer (autoopt)' ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
5 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v1.4.0
0 findings · 0.7s
v2.0.11
3686 findings · 43.9s
v0.3.74
5 findings · 17.1s
v0.1.0
0 findings · 4.6s
v0.1.0
0 findings · 4.6s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 0.9s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 22, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicable | rejected |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Flagged badge are computed from those raw severities alone. Nothing below moved them.
Out of 3,691 findings across every scanner that examined this package. 1 of 1 finding rated critical by their scanner was among the dismissals.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
7 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: COMPOUND_FIND_EXEC, SOCIAL_ENG_VAGUE_DESCRIPTION, FIND_EXEC_PATTERN and 1 more · Files: /repo/docs/build.sh, /repo/docs/SKILL.md · reported by cisco-skill-scanner
4 CI or editor configuration — The match is in build, CI or editor configuration, confirmed by our own check to be outside the installed artifact.
Rules: AAK-GHA-IMMUTABLE-001 · Files: .github/workflows/runtime_bench.yml, .github/workflows/lean_action_ci.yml, .github/workflows/effectiveness_bench.yml and 1 more · reported by agent-audit-kit
1 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: AAK-AGENT-002 · Files: CLAUDE.md · reported by agent-audit-kit
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
1,818 ARCHIVE_FILE_DETECTED
Files: /repo/Benchmarks/OpenVM/sha256/apc_001_pcsha256.json.gz, /repo/Benchmarks/OpenVM/wasm-eth/apc_090_pc0x1D33E8.json.gz, /repo/Benchmarks/OpenVM/openvm-eth/apc_078_pc0x324240.json.gz and 603 more · reported by cisco-skill-scanner
1,818 UNANALYZABLE_BINARY
Files: /repo/Benchmarks/OpenVM/openvm-eth/apc_043_pc0x3280e4.powdr_opt.json.gz, /repo/Benchmarks/SP1/rsp/apc_044_pc0x781ca148.json.gz, /repo/Benchmarks/OpenVM/openvm-eth/apc_096_pc0x35c5f8.json.gz and 603 more · reported by cisco-skill-scanner
15 YARA_prompt_injection_unicode_steganography
Files: /repo/Benchmarks/OpenVM/wasm-eth/apc_006_pc0x2E88F0.json.gz, /repo/Benchmarks/OpenVM/wasm-eth/apc_036_pc0x224240.powdr_opt.json.gz, /repo/Benchmarks/OpenVM/wasm-eth/apc_037_pc0x090F14.json.gz · reported by cisco-skill-scanner
7 MANIFEST_MISSING_LICENSE
Files: /repo/.claude/skills/autoopt/SKILL.md, /repo/.agents/skills/autoopt/SKILL.md, /repo/SKILL.md and 4 more · reported by cisco-skill-scanner
5 SOCIAL_ENG_VAGUE_DESCRIPTION
Unanalyzable components and prompt injection indicators present
The artifact contains components that are difficult to analyze, specifically in `/repo` and its subdirectories `/repo/Benchmarks`, `/repo/Benchmarks/OpenVM`, and `/repo/Benchmarks/SP1`. Additionally, there are indicators of potential prompt injection or unicode steganography within the artifact. A significant portion of the artifact consists of unanalyzable binaries and archive files, which limits visibility into its full capabilities.
Concern level assessed by the review: High. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.
4 EXCESSIVE_FILE_COUNT
Files: /repo/Benchmarks/OpenVM/., /repo/Benchmarks/., /repo/Benchmarks/SP1/. and 1 more · reported by cisco-skill-scanner
4 LOW_ANALYZABILITY
Files: /repo/Benchmarks, /repo/Benchmarks/SP1, /repo/Benchmarks/OpenVM and 1 more · reported by cisco-skill-scanner
4 OVERSIZED_FILE
Files: /repo/Benchmarks/OpenVM/openvm-eth/apc_candidates.json, /repo/Benchmarks/SP1/rsp/apc_candidates.json · reported by cisco-skill-scanner
3 MANIFEST_INVALID_NAME
Files: /repo/Benchmarks/SP1/SKILL.md, /repo/Benchmarks/SKILL.md, /repo/Benchmarks/OpenVM/SKILL.md · reported by cisco-skill-scanner
1 HIDDEN_DATA_FILE
Files: /repo/.agents/skills/autoopt/SKILL.md · reported by cisco-skill-scanner