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The agent_instructions field on POST /v1/run is a natural-language directive that gets incorporated into system prompts at every agent layer — orchestrator, strategist, persona agents, and block operators. Use it to shape tone, depth, scope, and citation requirements without having to pre-configure block types.

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Examples

InstructionEffect
"Be thorough, verify all claims with 2+ sources"More personas spun up, verification steps inserted
"Prioritize speed, minimal verification"Single persona, cross-checks skipped
"Write for a C-suite executive audience"Executive tone across all outputs
"Focus on European markets only"Research scoped geographically
"Include source citations for every claim"Citation requirements injected into per-block prompts

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Usage

curl -X POST https://api.getspine.ai/v1/run \
  -H "X-API-KEY: sk_spine_..." \
  -F "prompt=Analyze the competitive landscape for AI coding tools" \
  -F "template=deep_research" \
  -F "agent_instructions=Be thorough, verify all claims with 2+ sources. Write for a technical audience."
Agent instructions are additive to templates and custom blocks — you can combine all three in a single request.