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Card 103 of 9842026-09-13 issue

Observed arrival · 2026-09-13

Byspec, the signed spec verifier

byspec.dev Observed source
Editorial interest 86/100 Selection signal · not a rating of the site

A developer tool that checks whether code satisfies a human-approved specification and records each verdict in a signed, hash-chained ledger.

Landing page captured for the 2026-09-13 issue.

Field notes

The documented workflow starts with EARS-style acceptance criteria embedded in Markdown; a clarity gate scores the criterion before execution. Checks can inspect files, grep results, exported symbols, schemas, commands, tests, or HTTP responses, while the judge receives only the declared criterion, rubric, and evidence. The example ledger records sequence 175 alongside abbreviated hashes and an ECDSA P-256 SHA-256 signature, and the site provides an npm package plus a GitHub Action reference.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
LoginAccess appeared gated
$PaidCommerce or pricing visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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byspec.dev

Landing page observed 2026-09-13. The live site may have changed.