Lives in its own CI and deploy — not listed in toolbox /api/registry or aggregate /api/health.
Principia
Source-graded scholarship that turns fragmented measurement folklore into citeable primitives.
Character
Problem
External. Glossaries collide: one vendor defines engagement, another rebrands burnout scales, reviewers ask for evidence you cannot trace to a citation or grading rubric.
Internal. Analysts reinvent literature reviews quarterly; MCP agents invent instruments because no deterministic catalog binds them yet.
Philosophical. Organizational measurement behaves like observational astronomy — painstaking catalog discipline matters as much as flashy charts.
Guide
principia-connector (catalog-shaped consumption documented in toolbox specs under docs/principia/) — distinct audience, deliberately outside src/spokes/*/contracts.Abstract
Background. Measurement claims in HR tooling rarely publish provenance at the granularity applied sciences expect; Principia fronts that gap via curated corpora aligned with toolbox strategy docs ( companion spec docs/principia/00-toolbox-vision-and-specification.md).
Methodology. Principia aligns with MCP-forward catalog ergonomics enumerated there — keyed lists for models, constructs, instruments, citations, and evidence rows — while keeping editorial voice outside this Next.js deploy.
Scope. Book/research/database product plus planned native transports; the connector spoke is toolbox-local scaffolding.
Contribution. Supplies measurement vocabulary authoritative enough for calculators and psychometric spokes to cite without hallucinated instrument definitions.
Evidence / Provenance. Public exposition today lives under PeopleAnalyst research URLs; curls below inspect that surface without claiming unreleased MCP responses.
Plan
- 01
Read the companion toolbox spec
Begin with
docs/principia/00-toolbox-vision-and-specification.mdfor terminology alignment before bridging code. - 02
Wire toolbox consumers deliberately
Use
principia-connectorfor in-repo bridge work; escalate to Principia transports when MCP modules ship from Principia's repo. - 03
Keep provenance surfaced
Pair marketing claims with bibliography-grade citations — Principia inherits the toolbox rule that agents read sources, not folklore.
Call to Action
Direct. Inspect the hosted research exposition — GET curl below confirms the HTML surface today.
Transitional. Vendor Principia-aligned contract snapshots only once Principia publishes immutable semver artefacts; track principia-connector for bridging milestones.
Spoke I/O (visual language v1)
Portfolio members reuse the toolbox’s Spoke I/O visual language — composition view vs. toolbox microservice boundaries documented in PAT-PROTOCOL-A §15. Source package: @people-analytics-toolbox/spoke-illustrations.
Try it now
Copy this curl — it targets https://peopleanalyst.com/research/principia on its own deploy, not People Analytics Toolbox production URLs.
research.principia-public
GETPublic exposition route — verifies live storytelling Principia occupies outside this deploy.
curl -sS "https://peopleanalyst.com/research/principia"
Source repository · separate build
There is nothing to vendor from src/spokes/*/contracts inside this toolbox deploy — the portfolio member publishes its contracts from its home repository and ships on its own CI.
- Home repo: https://github.com/people-analyst/principia
- Public surface: https://peopleanalyst.com/research/principia
- Operator clone shorthand (from PAT card):
~/principia
Failure
Consumers keep inventing phantom constructs; MCP tools regress into generic search because no deterministic catalog anchors their outputs.
Success
Contracts cite graded measurement rows; Principia narratives and toolbox calculators stay synchronized instead of drifting silently.