Diagnose why an app runs locally but not when deployed: every variable the code reads, cross-checked against each environment, with fail-soft keys called out.
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npx promptdock@latest install Klickrehan/env-doctorReconciles the environment variables the code READS against the ones each environment SETS. The dangerous class is fail-soft config — a key whose absence does not crash anything, it just quietly stops sending email or firing a cron, so the failure surfaces weeks later as 'nobody
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Read a project's actual entry points, config and scripts, then write a README whose install and usage steps can be executed verbatim.
Document an HTTP API from its handlers — real params, real response shapes, real error codes — and flag every place the existing spec has drifted from the code.
Turn a branch diff into a pull request description a reviewer can act on: what changed, why, what to look at hardest, and what was deliberately left out.
Review a diff the way a senior engineer does: correctness first, then security, then performance, then style — each finding with a concrete failure case, ranked by severity.