PEDRO CASTANEDA / GREATER BOSTON

AI product.
Human systems.
Proof over hype.

I design and build software around difficult human workflows - then add the state, testing, governance, provenance, accessibility, and human-control layers required to make those systems trustworthy.

Portfolio boundary: public-safe, synthetic, de-identified examples only. No participant, patient, family, child, or private legal records are displayed.

PRODUCTSFrontline workflow software
AI & SYSTEMSGoverned model and agent control
INFRASTRUCTUREContinuity, provenance, validation

FEATURED WORK / 01-06

Six systems. One thesis.

The front page is intentionally curated. The Atlas underneath it preserves the wider body of software, specifications, prototypes, infrastructure, and historical work without pretending every item has the same maturity.

02FUNCTIONING SYNTHETIC PROTOTYPE

Smart Family Flow

Family needs, referral ownership, follow-up, and QR intake

A two-sided workflow: families ask for help in plain language; staff receive a structured Need that can be claimed, routed, worked, followed up, resolved, and audited.

  • Product
  • Human services
  • Next.js
  • TypeScript
  • Command model
  • QR intake
03TESTED PROTOTYPE

Workforce Continuity

Frontline handoffs, consent, next actions, and reviewer feedback

A mobile-first continuity layer for high-friction frontline workflows, with explicit consent behavior, persistence boundaries, accessible interaction patterns, and structured human feedback receipts.

  • Product
  • Workforce
  • HTML/CSS/JS
  • Accessibility
  • Consent
  • Static tests
04PARTIAL RUNTIME / ACTIVE BUILD

CourtChain

Governed legal matter continuity without autonomous legal authority

A matter-oriented system for timelines, evidence, deadlines, filing states, accessibility routing, provenance, authentication, and fail-closed access boundaries.

  • Product
  • Legal
  • Accessibility
  • Auth/session
  • CI gates
  • Provenance
05REFERENCE IMPLEMENTATION

HCOS Governed AI Execution

Provider-independent AI execution and authority controls

A model-independent control pattern for scoped context, adapter routing, authorization, fallback behavior, provenance, schema validation, and human authority.

  • AI infrastructure
  • Governance
  • Python
  • JSON Schema
  • Fail-closed policy
  • Conformance tests
Explore the full Human Code Universe Atlas

See software, AI systems, infrastructure, protected work, and concept history with explicit maturity labels.

PLATFORM CORE / HUMAN-CONTROLLED CONTINUITY

Continuity Wallet is where the architecture becomes a product.

Identity, consent, contextual roles, app routing, continuity history, guided packet preparation, and audit behavior come together in one human-facing command center. The Wallet is not “just another project”; it is a connective product layer underneath multiple Human Code experiences.

Maturity boundary: the public Wallet surface is inspectable, but that does not mean every connector, database path, authentication journey, or enterprise admission gate is production-complete.

IDENTITYwho is acting
CONSENTwhat may move
ROLEcontextual authority
ROUTEapproved workspace
RECEIPTwhat happened
EXPORTportable continuity

SOFTWARE I HAVE BUILT

Product. AI. Infrastructure.

Recruiters should not have to infer the technical body of work from project names. This index makes the build surface explicit while the Atlas carries the evidence and maturity detail.

Product software

Treatment Signal

Smart Family Flow

Workforce Continuity

CourtChain

Recovery Operations

Continuity Wallet

Learning / portal systems

AI & system software

HCOS Multi-Model Control Plane

Collective Authority Control

AI Pluralism Engine

Agent Handoff / Work Packets

Model routing & provenance

Human approval controls

Developer infrastructure

Human Code Continuity Spine

Project Memory

Master Governing Record tooling

Ontology validators

Protected-identifier scanners

Ecosystem boundary validators

HOW I BUILD

Start with the failure mode.

The strongest systems work starts before the code: who is confused, what gets dropped, where authority is ambiguous, what data should not move, and what must remain true after a handoff or model call?

  1. 01
    Observe the human workflow

    Find friction, ambiguity, handoff loss, access barriers, and repeated work.

  2. 02
    Model the state

    Define objects, roles, transitions, ownership, evidence, and failure paths.

  3. 03
    Build the smallest proof

    Prototype the critical vertical slice with synthetic data and explicit boundaries.

  4. 04
    Test behavior, not screenshots

    Exercise invalid transitions, refresh, fallback, accessibility, isolation, and regression.

  5. 05
    Keep humans authoritative

    Approval, revocation, provenance, privacy, and action receipts are product behavior.

  6. 06
    Ship evidence with the change

    Code + tests + documentation + specification, with preview-first promotion.

THE THESIS

Technology should preserve the continuity of the human using it.

My path into product and AI started from the human side of fragmented systems: family services, behavioral health, homelessness services, court navigation, accessibility, and high-context coordination.

That background now informs how I design software: fewer hidden handoffs, clearer ownership, stronger evidence, explicit boundaries, and AI that supports - rather than quietly replaces - human judgment.

Pedro Castaneda
AI Product & Systems Builder

Read the resume →