Structured, evidence-backed records of what companies actually run. This data powers thetechstack.com/stacks.

Every tool entry carries a status (current / previous / evaluating), a confidence label (confirmed / inferred / reported), and cited evidence with source URLs.

flowchart LR
    A["Cited public evidence"] --> B["Structured stack record"]
    B --> C["Schema and evidence checks"]
    C --> D["Human review"]
    D --> E["Approved public commit"]
    E --> F["Exact-SHA import"]
    F --> G["Private revalidation + build"]
    G --> H["TheTechStack site"]

The private research and editorial system remains private. This repository exposes the public contract: records, evidence, confidence labels, validation rules, and correction history.

Work at one of these companies and see something wrong or stale? Open a pull request. That's the whole point of this repo. If editing JSON is inconvenient, open a stack correction issue instead. See CONTRIBUTING.md for the evidence and review rules.

Records verified by the company get a ✓ badge on the site.

Publication status: after an approved change merges, the exact validated public commit is imported into the private site repository, validated again, built, and deployed. A maintainer still confirms the production result before treating a correction as live.

Records conform to schema/stack-record.schema.json, categories to schema/categories.md.

Run the same validation used in pull requests:

npm ci
npm run validate

• Evidence-backed structured research with explicit provenance.
• Honest confirmed, inferred, and reported confidence labels.
• Current, previous, and evaluating states instead of destructive history edits.
• Automated contract checks paired with human editorial and verification gates.
• A public correction surface that does not expose private product or orchestration code.

Data and schema: CC BY 4.0 — use them with attribution to TheTechStack.

The records and schema in this repository are the public source of truth. The site imports approved public commits by exact SHA, so private publishing work cannot overwrite accepted public corrections.