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@specferret/core

v0.4.2

Published

4 days ago

SpecFerret core engine — spec drift detection.

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0Medium
0Low

@specferret/core

Core engine for SpecFerret contract extraction, validation, graph reconciliation, and drift analysis.

What this package is for

@specferret/core is the runtime library behind the CLI. Use it when you want to embed SpecFerret behavior in scripts, custom tooling, or internal workflows.

It includes:

Store implementations (sqlite, postgres)
Frontmatter extraction and schema validation
Reconciler logic for direct/transitive impact
Context graph generation utilities

Install

npm i @specferret/core

Runtime requirements

Bun 1.0+

SpecFerret core is Bun-first and uses Bun-compatible runtime behavior.

Typical consumers

Internal platform tooling that needs drift checks in-process
CI wrappers that need machine-readable drift metadata
Custom developer workflows on top of SpecFerret reconciliation data

Validation status

Core behavior is validated through the Sprint 5 external branch-matrix harness (spec-kit + BMAD), including explicit assertions for:

S40 transitive depth thresholds
S41 review proof artifacts
S42 extract determinism

Latest green runs:

spec-kit: https://github.com/BenGardiner123/spec-ferret-validation-spec-kit/actions/runs/23962649755
BMAD: https://github.com/BenGardiner123/specferret-validation-bmad/actions/runs/23962652352

Looking for the CLI?

Install @specferret/cli if you want the end-user command interface:

bun install -g @specferret/cli

Links

Source: https://github.com/BenGardiner123/spec-ferret
Docs: https://specferret.dev
CLI package: https://www.npmjs.com/package/@specferret/cli