Custom Tier C agents

This page consolidates the Tier C extension surface. Most of the practical guide already lives in Custom patterns §"Custom Tier C technologies" — this page exists so the navigation has a stable anchor.

The three Tier C extension points are:

1. Add a bundled snapshot — drop a JSON file at eval/tech_specs/<category>/<technology>/<version>.json matching eval/tech_specs/_schema.v1.json.
2. Configure a private MCP server — set CLEAN_AGENT_TECHSPEC_MCP_URL to point at an internal docs aggregator.
3. Add a custom MCDA scoring entry — append to eval/mcda_scores/<category>.json so --infer-infrastructure considers your technology.

See Custom patterns for the full walkthroughs and code examples.

See also

• Tier C catalog — the 15 categories and their bundled technologies.
• Infrastructure layer — design rationale.