catalog / goods

Office Chair

What actually differs between chairs, once marketing is removed.

18 capabilities 8 sections reference specification

Build against it

# give your agent the catalog — no account, no install
claude mcp add provespec -- npx -y provespec-mcp

# then, from any agent session
spec_get(slug: "office-chair")                → the capability tree
spec_checklist(slug: "office-chair")          → the questions to answer
spec_grade(slug: "office-chair", grades: [...])  → parity % + the gap list

# or just fetch it
curl https://provespec.com/catalog/office-chair/spec.json

Grade every capability below as yes · partial · no · na, with a file reference as evidence. Whatever you leave ungraded counts as missing — the gap list is the work queue.

Or just paste this to your agent

Use the ProveSpec MCP server. Fetch the "office-chair" spec with
spec_get, then walk spec_checklist and grade this repository against it —
one verdict per capability, each with a file reference as the note.
Call spec_grade with the results and give me the gap list as the plan.

If the server is not registered, add it first:
  claude mcp add provespec -- npx -y provespec-mcp

The specification

Adjustment 5

  • Seat height range cm fits the user, not the average
  • Seat depth adjustment
  • Backrest tilt with lockable positions
  • Tilt tension matched to body weight
  • Armrest axes 2D/3D/4D

Support 3

  • Lumbar support, adjustable in height and depth
  • Headrest present and adjustable, or absent by design
  • Seat pan pressure distribution

Materials 3

  • Seat and back material mesh, foam, fabric
  • Frame and base material nylon, aluminium
  • Casters suited to the floor type hard floor versus carpet

Fit 1

  • Supported height and weight range

Build 2

  • Assembly time and tools required
  • Stability and wobble under lean

Durability 2

  • Warranty length by component frame versus fabric versus cylinder
  • Replacement parts sold separately

Certification 1

  • BIFMA or EN 1335 compliance

Value 1

  • Price and warranty-years per unit cost
Download spec.json All 53 specs