CONTEXT-GRAPH AGENTBUILT ON DATAHUB

Ship schema changes
without surprises.

LineageShield turns a proposed data change into a verified blast radius, accountable owner map, and merge-ready rollout plan.

Inspect a change ↓10 DataHub assets in this recorded sample

LINEAGEOWNERSPOLICIESSCHEMA

✦CONTEXTGRAPH AGENT

01 / THE WORKSPACE

One change. Every consequence.

Choose a pull request. The public demo replays a recorded four-call DataHub MCP trace, traverses the metadata graph, and turns that context into an executable plan.

CHANGE ORIGIN

PODATASET

raw.crm_contactsGrowth Systems

PIISource

DEPTH 1

SNDATASET

staging.customer_contactData Platform

PIICertified

DEPTH 2

SNDATASET

analytics.customer_360Customer Analytics

PIICertified

DEPTH 3

LODASHBOARD

Customer healthCustomer Analytics

ExecutivePII

FEDATASET

features.customer_valueML Platform

MLOnline

BRACTIVATION

High-value at-risk audienceLifecycle Growth

ActivationPII

DEPTH 4

MLML MODEL

Churn propensity v8Lifecycle ML

MLProduction

AFFECTED7assets

CRITICAL6need sign-off

OWNERS6teams

CHANGE RISK99/ 100 · Critical

02 / AGENT OUTPUT

A rollout teams can execute.

CONTEXT CONFIDENCE98%

IMPACT BRIEFCritical risk

Hash customer email

The proposal reaches production decisions beyond its immediate contract. LineageShield recommends a compatibility window.

7 assets are reachable across 4 lineage hops.

6 Tier 1 or policy-sensitive consumers need explicit approval.

6 ownership groups must coordinate the rollout.

5 assets retain PII semantics after the proposed transformation.

CONTEXT USED

✓ Lineage✓ Ownership✓ Tags✓ Tiers✓ Schema

SAFE ROLLOUT PLAN3 phases

Contract first

Growth Systems

□Add email compatibility assertion
□Pin current contract as varchar · plaintext
□Block merge on downstream contract failures

Dual-run the change

Data Platform

□Materialize old and new values for email
□Compare row counts and null rates across 7 assets
□Require sign-off from raw.crm_contacts, staging.customer_contact, analytics.customer_360

Progressive rollout

Customer Analytics

□Deploy to 10%, 50%, then 100% of scheduled runs
□Watch freshness, volume, and semantic assertions
□Keep the compatibility view for one release window

GENERATED GUARDRAIL

Compatibility SQL, ready for review.

The agent converts graph context into a concrete guardrail—not another generic summary.

-- Compatibility view generated by LineageShield
create or replace view analytics.customer_contact_safe as
select
  * exclude (email),
  sha2(lower(trim(email)), 256) as email_hash,
  email as email_legacy
from staging.customer_contact;

-- Remove email_legacy after downstream sign-off.

03 / BUILT FOR REAL METADATA