@okforest/validate

Validate Open Knowledge Format (OKF) v0.2 trees: spec conformance, field shapes, links, OKForest conventions, and D2 and Mermaid diagram syntax. Findings are structured, with stable rule IDs, severities, and file, line, and column locations. Deterministic: no model calls and no network.

import { readTree } from "@okforest/okf/node"
import { validate } from "@okforest/validate"

const result = await validate(await readTree("./sales-okf"))
result.ok // no errors (warnings and info never fail)
for (const f of result.findings) {
  console.log(`${f.file}:${f.line ?? ""} ${f.severity} ${f.ruleId} ${f.message}`)
}

Options: rules (defaults to defaultRules, which is okfRules plus okforestRules), severity (per-rule overrides, or "off"), and now (for date checks). A rule is { id, severity, description, check(context) }, so your own rules plug in alongside the built-in ones.

Diagram checks load the optional peers @d2lang/d2 and mermaid if they are installed; otherwise diagram blocks are reported as not checked (info). To load them from somewhere else (a bundle, a download), pass diagrams loaders. Each runs at most once per validation, and only if the tree has diagrams of that language; return the module, or { unavailable: "<reason>" }:

await validate(tree, {
  diagrams: {
    d2: async () => (await fetchD2()) ?? { unavailable: "D2 could not be downloaded." },
  },
})

toReport(result, { tool, path }) wraps a result as the versioned JSON document that okforest validate --format json prints (schemaVersion: 1), so other tools can produce and consume the same format. Each finding in it carries docs, the URL of its rule's page; ruleUrl(ruleId) gives the same URL (https://www.okforest.ai/docs/rules/<rule id>/).

The full rule list is in the OKForest CLI README.

Part of the OKForest CLI · Apache-2.0 · © Preneur LLC