Configuring Ai Agents

Configuring AI Agents

An AI agent is an LLM-powered import step that processes records through an AI model instead of writing them to an external system. Records flow in, the model processes them according to instructions, and structured output flows back into the pipeline.

AI agents handle four concerns:

• Prompt design -- the system instruction that defines the model's behavior, goals, and constraints (up to 50 KB). The prompt receives each record as context and must produce output that downstream steps can consume
• Structured output -- json_schema output format forces the model to return data conforming to a JSON Schema, enabling reliable field extraction for mapping. text returns free-form responses. blob returns binary data (image generation)
• Tool use -- the model can call web search, MCP server tools, Celigo Tool resources, or image generation during processing. Tools extend the model's capabilities beyond its training data
• Response mapping -- extract fields from the model's response back into the record for downstream steps. Configured on the flow's pageProcessors[] entry, but planned when building the agent. The response is available via _json. Response mapping uses Transformation 1.0 syntax (extract/generate pairs)

AI agents do not require a _connectionId unless using BYOK (bring your own key). Without one, platform-managed credentials are used.

Used across flows, APIs, and tools.

Two Types of AI Import

AI Agent Imports

Invoke an LLM for classification, extraction, summarization, translation, or generation. Two providers:

• OpenAI (provider: "openai") -- GPT models via the OpenAI Responses API. Supports reasoning effort control, structured JSON output, web search, MCP tools, Celigo Tools, and image generation.
• Gemini (provider: "gemini") -- Google Gemini models via LiteLLM proxy. Supports thinking config, Google Search grounding, URL context, file search, MCP tools, and Celigo Tools.

Guardrail Imports

Safety and compliance checks applied to data flowing through integrations. Three sub-types:

• ai_agent -- uses an AI model to evaluate data against custom instructions (reuses the same aiAgent config as AI Agent imports)
• pii -- detects and optionally masks personally identifiable information (email, SSN, credit card, etc.)
• moderation -- checks content against moderation categories (hate speech, violence, harassment, etc.)

Guardrails do not require a _connectionId unless using BYOK for the ai_agent sub-type.

Quick Reference

Adaptor Decision Matrix

| You need... | Use adaptorType | Config block | Read schema | |---|---|---|---| | LLM classification, extraction, generation | AiAgentImport | aiAgent{} | [aiagent.yml](references/schemas/aiagent.yml) | | PII detection or masking | GuardrailImport | guardrail{} | [guardrail.yml](references/schemas/guardrail.yml) | | Content moderation | GuardrailImport | guardrail{} | [guardrail.yml](references/schemas/guardrail.yml) | | AI-based custom validation | GuardrailImport with guardrail.type: "ai_agent" | guardrail.aiAgent{} | [guardrail.yml](references/schemas/guardrail.yml) + [aiagent.yml](references/schemas/aiagent.yml) |

adaptorType is case-sensitive: AiAgentImport, not aiagentimport.

Provider Decision Matrix

| Provider | Config path | Instructions field | Models | Tool types | |---|---|---|---|---| | OpenAI | aiAgent.openai{} | openai.instructions | gpt-4.1-mini, gpt-5-mini, gpt-5, gpt-4.1, gpt-5-pro, gpt-4.1-nano | web_search, mcp, tool, image_generation | | Gemini | aiAgent.litellm{} | litellm._overrides.gemini.systemInstruction | gemini/gemini-2.5-pro, gemini/gemini-2.5-flash | googleSearch, urlContext, fileSearch, mcp, tool |

Minimum Required Fields

AiAgentImport: name, adaptorType: "AiAgentImport", aiAgent.provider, and provider config (aiAgent.openai{} or aiAgent.litellm{}). Instructions and model are required within the provider block.

GuardrailImport: name, adaptorType: "GuardrailImport", guardrail.type, and the sub-type config (guardrail.pii{}, guardrail.moderation{}, or guardrail.aiAgent{}).

Schema Index

All schemas are in [references/schemas/](references/schemas/):

• Base fields (all imports): [request.yml](references/schemas/request.yml)
• Response shape: [response.yml](references/schemas/response.yml)
• AI agent config: [aiagent.yml](references/schemas/aiagent.yml) -- provider, model, instructions, reasoning, temperature, output format, tools
• Guardrail config: [guardrail.yml](references/schemas/guardrail.yml) -- PII entities, moderation categories, AI-based validation, confidence threshold

Related Skills

• [configuring-imports > AI Imports](../configuring-imports/SKILL.md#ai-imports) -- how AI agents fit within the broader import category
• [configuring-connections > Quick Reference](../configuring-connections/SKILL.md#quick-reference) -- MCP connections for tool use, HTTP connections for BYOK
• [building-flows > How to Build a Flow](../building-flows/SKILL.md#how-to-build-a-flow) -- wiring AI agents into flow pipelines
• [building-tools > Tool Concepts](../building-tools/SKILL.md#tool-concepts) -- building Celigo Tools that AI agents can invoke
• [writing-mappings > Response Mapping Reference](../writing-mappings/SKILL.md#response-mapping-reference-transformation-10) -- extracting fields from AI responses
• [troubleshooting-flows > Diagnostic Workflow](../troubleshooting-flows/SKILL.md#diagnostic-workflow) -- diagnosing AI agent failures
• [writing-handlebars > Quick Reference](../writing-handlebars/SKILL.md#quick-reference) -- dynamic expressions in AI prompts and field values

How to Build an AI Agent

1. Determine the task

What should the AI model do with each record? Common patterns: classification (sentiment, routing), extraction (invoice parsing, address normalization), validation (business rules), generation (translations, summaries), enrichment (web search augmentation). The task determines the provider, model, output format, and whether tools are needed.

2. Check for existing patterns

# Search for existing AI agents in the account
celigo ai-agents list

# Search across the entire account
celigo account search "ai agent"
celigo account search ""

3. Choose the provider and model

Use OpenAI for most tasks -- it has broader tool support and reasoning controls. Use Gemini when you need Google Search grounding, URL context retrieval, or file search.

Within each provider, choose the model based on the task complexity:

• Simple tasks (classification, routing): use smaller models (gpt-4.1-mini, gpt-4.1-nano, gpt-5-mini, gpt-5-nano)
• Complex tasks (multi-step reasoning, extraction): use larger models (gpt-4.1, gpt-5, gpt-5-pro)
• Cost-sensitive: smaller models process faster and cost less

4. Write the instructions

The system instruction is the most important configuration. Be specific about the task, expected input shape, and desired output. Include examples for complex tasks. Set constraints for edge cases (empty fields, invalid data). Keep instructions focused on a single responsibility per agent.

5. Configure the output format

Three options:

• json_schema -- forces structured JSON output conforming to a schema. Use this whenever downstream steps need to map specific fields from the response. Define the schema in output.format.jsonSchema (OpenAI) or responseFormat.jsonSchema (Gemini)
• text -- free-form text response. Use for summarization, translation, or when the entire response is one field
• blob -- binary output (image generation use cases)

For json_schema, set strict: true if you need guaranteed schema conformance (slightly higher latency).

6. Tune parameters

• reasoning.effort (OpenAI) or thinkingConfig.thinkingLevel (Gemini) -- controls depth of reasoning. Use "medium" for most tasks; "low" for simple classification; "high" for complex analysis
• temperature -- 0.2 for deterministic output (data extraction, classification); 1.0+ for creative generation
• maxOutputTokens / maxCompletionTokens -- set based on expected response size. 1000 for short classifications; 5000-20000 for detailed extractions; 100000+ for long-form generation

7. Add tools (if needed)

Tools extend what the model can do during processing:

• web_search (OpenAI) / googleSearch (Gemini) -- search the web for current information to enrich records
• mcp -- connect to an MCP server for external tool calls. Requires an MCP connection (_mcpConnectionId). Optionally restrict with allowedTools
• tool -- invoke a Celigo Tool resource. Reference via _toolId. Supports per-agent overrides
• image_generation (OpenAI) -- generate images from text descriptions
• urlContext (Gemini) -- fetch and process URL content
• fileSearch (Gemini) -- search uploaded files

8. Configure BYOK (optional)

By default, AI agents use platform-managed credentials. To use your own API key, create an HTTP connection with your provider's API key and set _connectionId on the import, or use celigo ai-agents replace-connection .

9. Build the JSON

Read the schema files from the [Schema Index](#schema-index). Start with [request.yml](references/schemas/request.yml) for base fields, then [aiagent.yml](references/schemas/aiagent.yml) for the provider configuration block.

How to Build a Guardrail

1. Choose the guardrail type

• pii -- detect (and optionally mask) personally identifiable information. Configure which entity types to scan for in guardrail.pii.entities
• moderation -- check content against harmful categories. Configure which categories in guardrail.moderation.categories
• ai_agent -- custom AI-powered validation using the same LLM configuration as AI Agent imports

2. Set the confidence threshold

guardrail.confidenceThreshold (0 to 1, default 0.7) controls sensitivity. Lower values catch more potential issues but increase false positives.

3. Build the JSON

Read [guardrail.yml](references/schemas/guardrail.yml) for all configuration options. For the ai_agent sub-type, also read [aiagent.yml](references/schemas/aiagent.yml).

CLI Commands

# CRUD -- AI Agents
celigo ai-agents list
celigo ai-agents get 
celigo ai-agents create   key=value [key2=value2 ...]
celigo ai-agents delete  [-y]

# Invoke (test without creating a job)
echo '[{"text":"classify this"}]' | celigo ai-agents invoke 

# Clone and connection management
celigo ai-agents clone 
celigo ai-agents replace-connection  

# Debug
celigo ai-agents enable-debug  [--duration ]
celigo ai-agents disable-debug 

# CRUD -- Guardrails
celigo guardrails list
celigo guardrails get 
celigo guardrails create   key=value [key2=value2 ...]
celigo guardrails delete  [-y]

# Invoke (test without creating a job)
echo '[{"text":"check this content"}]' | celigo guardrails invoke 

# Clone and connection management
celigo guardrails clone 
celigo guardrails replace-connection  

# Debug
celigo guardrails enable-debug  [--duration ]
celigo guardrails disable-debug 

# Discovery
celigo account search ""
celigo templates marketplace

Pre-Submit Checklist

Required (AI Agent)

• [ ] adaptorType is exactly AiAgentImport (case-sensitive)
• [ ] aiAgent.provider is set ("openai" or "gemini")
• [ ] Instructions are set (aiAgent.openai.instructions or aiAgent.litellm._overrides.gemini.systemInstruction)
• [ ] Model is set (aiAgent.openai.model or aiAgent.litellm.model)
• [ ] If using json_schema output: schema is defined in output.format.jsonSchema (OpenAI) or responseFormat.jsonSchema (Gemini)

Required (Guardrail)

• [ ] adaptorType is exactly GuardrailImport (case-sensitive)
• [ ] guardrail.type is set ("ai_agent", "pii", or "moderation")
• [ ] Sub-type config is present: guardrail.pii.entities[] for PII, guardrail.moderation.categories[] for moderation, guardrail.aiAgent{} for AI validation

Cross-resource consistency

• [ ] If using BYOK: _connectionId references a valid HTTP connection with the provider's API key
• [ ] If using MCP tools: _mcpConnectionId references a valid MCP connection
• [ ] If using Celigo Tools: _toolId references a valid Tool resource
• [ ] If response mapping needed: configured on the flow's pageProcessors[] entry, not on the agent itself

Gotchas

1. PUT erases omitted fields. Always GET first, modify, then PUT. The set command handles this.
2. OpenAI and Gemini use different config paths. OpenAI instructions are at aiAgent.openai.instructions; Gemini instructions are at aiAgent.litellm._overrides.gemini.systemInstruction. Using the wrong path silently produces an agent with no instructions.
3. Gemini model IDs require the gemini/ prefix. Use gemini/gemini-2.5-pro, not gemini-2.5-pro. Without the prefix, LiteLLM cannot route to the correct provider.
4. json_schema output without a schema definition returns unpredictable JSON. Always define jsonSchema when using json_schema output format.
5. Response mapping is on the flow, not the agent. AI responses are available via _json in the flow's pageProcessors[] response mapping. Putting mapping config on the agent itself has no effect.
6. MCP tool connections must be type mcp. Regular HTTP connections cannot be used as _mcpConnectionId even if they point to an MCP server URL.
7. maxOutputTokens defaults to 1000. For complex extractions or long-form generation, increase this or the response will be truncated silently.

Common Errors

| Error | Cause | Fix | |-------|-------|-----| | 422 adaptorType invalid | Wrong case | Use AiAgentImport or GuardrailImport exactly | | Truncated AI response | maxOutputTokens too low | Increase to match expected response size | | Empty or nonsensical output | Missing or vague instructions | Write specific instructions with expected input/output format | | _mcpConnectionId invalid | Wrong connection type | Use an MCP connection, not HTTP | | _toolId not found | Tool resource deleted or wrong ID | Verify tool exists with celigo tools get | | Guardrail flags everything | confidenceThreshold too low | Increase threshold (e.g., 0.7 to 0.9) | | Guardrail misses obvious PII | Missing entity types | Add all relevant entity types to guardrail.pii.entities[] |

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: celigo
• Source: celigo/ai
• License: MIT

Install and usage instructions live in the source repository linked above.