Automated README summary
Automatically summarized from the README on 26 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.
What it is
Perch is a semantic code linter and security scanner for developers. It evaluates code units against configurable questions, surfaces defects with confidence scores, and can run in CI or via agent skills.
How it uses Jev
Perch routes its questions to a decision model; Jev is selectable via PERCH_BASE_URL and PERCH_MODEL_ID. The README does not specify which individual decisions Jev makes, what state is passed, or how probabilities are consumed in code beyond ranking findings.
Technique worth stealing
Cache decisions so re-running on unchanged code is free.
Try it
npm install -g @lakeday/perch; perch login; perch scan
Model judgments from README excerpts
Project signals use repository metadata, an existing summary and the first 700 README characters, not the full project. “Not found” means not detected in that material; it does not establish absence. These are the original judgments with recorded models and dates, not source audits or run results.
Models & evaluation dates
- Inclusion gate
jev-1.14.0- Project signals
jev-1.14.0- Category
jev-1.14.0- Pattern tags
jev-1.14.0
Evidence
These signals use repository metadata, an existing summary and at most 700 cleaned README characters. ≥ 0.60 means reported in that excerpt; ≤ 0.40 means not found there. The middle band is inconclusive. None is a source-code audit or a test result. The runnable-tool question excludes research experiments; the recommendation question asks for a learning shortlist, not a quality verdict.
- Jev is core to the projectFound in material0.70
- Shows a System One patternnot found in the excerpt0.28
- Describes handling uncertaintynot found in the excerpt0.04
- Reports measured numbersFound in material0.66
- Is a runnable toolFound in material0.98
- Top-10 learning shortlist signalnot found in the excerpt0.09
- Is a replica of the modelnot found in the excerpt0.14
- Solves a common problem (0–2)score on a 0–2 scale1.98 / 2
- About JevFound in material0.97
no-judgment band (0.40–0.60)
no-judgment band (0.40–0.60)
The Jev model and date for each judgment stage are listed above. Card written by DeepSeek V4.1 Flash from the README on 26 Oct 2026.