{"mcpName":"station__microgram__run-chain","slug":"microgram__run-chain","label":"run-chain","description":"Run an ad-hoc microgram chain by expression. Each step output feeds the next. Example: \"prr-signal -> signal-to-causality -> naranjo-quick\".","domainSlug":"microgram","pvRelevance":"pv-core","backend":"external","agentMetadata":{"idempotent":null,"read_only":null,"expected_latency_ms":null,"cost_tokens_estimate":null,"pipes_to":null},"inputSchema":{"type":"object","properties":{"chain":{"type":"string","description":"Chain expression: microgram names joined by \" -> \""},"accumulate":{"type":"boolean","description":"If true, preserve all upstream outputs (default: true)"}},"required":["chain"]},"example":null,"taxonomy":{"rank":{"domain":"Substrata","kingdom":"Constructa","phylum":"Configa","class":"station-config","order":"microgram","family":"mcp-tool-config"},"characteristics":{"substrate":"config","domain":"pv","lifecycle":"continuous","stateful":false,"persistence":"none","authority":"read","compounding":"producer","io_input":"agent-request","io_output":"tool-response"}},"_links":{"html":"/tools/microgram__run-chain","markdown":"/tools/microgram__run-chain/raw.md","invoke":"/api/mcp","catalog":"/api/mcp"}}