Design playbook / MCP shared capabilities
One tool-authority change can affect many agents.
A sample cross-system scenario: connect a shared MCP capability to dependent systems, evidence and the next required review.
Source → state → assurance → decision
A specific, explainable connection path.
This is a proposed integration contract illustrated with authored examples. Every state transition would require supported source access, provenance and product release qualification.
- 01
Discover shared tool
Record an MCP server, its declared capabilities and available authorization metadata.
- 02
Model dependency
Link the capability to each consuming agent and to governance-relevant control requirements.
- 03
Evaluate semantic change
Compare approved read-only authority with a new write-capable tool declaration.
- 04
Trace blast radius
Show system-by-system impact, preservation, revalidation needs and unresolved mappings.
Source inputs and provenance
Required for a bounded connector contract—not a promise that every native API exposes them.
- Server and tool manifest identifiers
- Declared capabilities or permissions when exposed
- Governance dependency edges and approved baselines
Questions the control layer must answer
Consequences of change, measured against the governing baseline and evidence.
- Which agents depend on the changed tool?
- Which permissions or assurances are implicated by write authority?
- What stays unknown if the MCP metadata does not reveal effective permissions?
Boundaries and unknowns
No source coverage, no certainty.
Steerlane does not treat unavailable fields as verified unchanged. Unsupported authority, missing telemetry and stale sources remain explicitly unresolved.
- MCP discovery is not a complete proof of effective authorization.
- Estate-wide graph resolution is an evaluation objective, not evidenced as live here.
- Demo agents, tool changes and counts are fictional.
Evaluation focus: shared authority, dependency mapping and unknown effective permissions.
Evaluate the actual scope before committing to a pilot.
Tell us your platform, tenant boundaries, evidence sources and review ownership. Pilot commitments remain limited to demonstrated capabilities.