September 25, 2026
Set Per-Role Token Limits in Agent Config Object
Learn how to set per role token limits config for every agent you run. Define role-specific caps in a single versioned object, route actions through the appro

Set Per-Role Token Limits in Agent Config Object
Your agent runtime backend often runs multiple roles within one execution. Without explicit caps, one role can consume disproportionate tokens and drive up costs. The Agent Command Center lets you set per role token limits config inside a single versioned object so every role respects its allocation before any work proceeds.
Key takeaways:
- Token limits are defined per role inside the versioned config object.
- Exceeding a limit routes the step to the approvals inbox for human review.
- Live visibility shows token usage and cost estimates per execution.
- Changes to limits are tracked across versions without losing history.
How to Define Role Limits in the Single Config Object
Open the config object for the agent. Locate the roles section and add a token_limit field under each role entry. Specify an integer value that represents the maximum tokens that role may use in one run.
- List every role that appears in your prompt templates.
- Assign a numeric cap based on observed average usage from prior executions.
- Add an optional action_on_exceed field set to "require_approval" or "halt".
- Save the object; the change is versioned automatically.
Repeat the process for each additional role. The structure keeps all limits in one place so you can compare allocations at a glance. Role-specific caps prevent a single high-volume task from starving other agents that share the same runtime backend.
Steps to Apply Limits Across Multiple Roles
Follow these steps when you introduce new roles or adjust existing caps.
- Export the current config object to review prior token usage numbers.
- Identify roles that have exceeded their previous limits in execution logs.
- Update the token_limit value for each affected role.
- Add a note in the config comments describing the reason for the change.
- Deploy the new version to your agent runtime backend.
- Monitor the next three executions for compliance.
This sequence keeps limits aligned with actual workload patterns. Teams that skip the monitoring step often discover that initial caps were set too low once real data arrives.
Comparison of Token Limit Enforcement Options
| Role | Default Limit | Exceed Action | Visibility Source | Approval Required |
|---|---|---|---|---|
| Researcher | 8000 | require_approval | Execution logs | Yes |
| Writer | 12000 | halt | Token usage stream | No |
| Reviewer | 4000 | require_approval | Cost estimates | Yes |
| Planner | 6000 | require_approval | Approvals inbox | Yes |
The table shows how different roles can carry distinct rules while remaining inside the same config object. Adjust these values after collecting at least one week of live token usage data from your runtime.
Integrate Limits with the Approvals Inbox
When a role reaches its token limit the step stops. The pending action appears in the approvals inbox with the projected token count and cost estimate attached. You can approve, reject, or edit the output before it continues.
Audit cost estimates approvals inbox entries for every agent action to see how token data surfaces before any real-world change occurs. Human approval remains mandatory for actions that touch production systems.
Monitor Token Usage in Execution History
The Agent Command Center streams token counts per role during each run. After completion, the execution history logs display cumulative usage against the configured limit. Compare these numbers across versions to decide whether a limit needs adjustment.
Inspect agent state changes execution history logs to trace how role-level consumption evolves over time. The data stays tied to the exact config version that produced it.
Align Token Controls with Broader AI Governance Standards
Per-role token limits form one part of responsible runtime management. Align your configuration choices with established governance frameworks to maintain audit readiness and reduce regulatory exposure.
- Map each token_limit entry to the risk categories listed in the NIST AI Risk Management Framework.
- Record the rationale for every cap in the config comments so auditors can trace decisions back to measurable usage data.
- Re-evaluate limits whenever model fallback rules change, because fallback paths can alter token consumption profiles.
- Export execution logs that include token counts and approvals inbox outcomes for periodic compliance reviews.
- Test limit enforcement in a non-production runtime before rolling changes to agents that handle live data.
Follow the NIST AI Risk Management Framework guidelines when defining measurable controls for autonomous agents. Reference the ISO/IEC 42001 standard for AI management systems to structure version history and approval workflows around your token limits.
Handle Overruns in Production Environments
Even with careful caps, production workloads can produce unexpected spikes. Prepare explicit procedures for these cases.
- Pause the affected role automatically when the limit is reached.
- Surface the overrun event in the approvals inbox with full context including intermediate outputs.
- Require a human reviewer to either raise the limit temporarily or edit the task before resumption.
- Log the decision and new version of the config object for future reference.
- Update average usage statistics so subsequent limit calculations reflect real patterns.
These steps keep human oversight in place while preserving execution continuity.
Checklist for Safe Token Limit Configuration
- Verify that every role listed in the prompt also appears in the config object.
- Set conservative initial limits and raise them only after reviewing three full executions.
- Enable the require_approval flag for any role that interacts with external APIs.
- Document the rationale for each limit in the config comments field.
- Schedule a monthly review of token usage reports against the current caps.
- Test the exceed path in a staging runtime before applying to production agents.
These checks reduce the chance that a single role will consume unexpected resources.
Adjust Limits When Adding New Tools or Schedules
New tools often increase token consumption. When you add a tool to a role, first run a short test execution and note the additional tokens used. Then update the token_limit field to accommodate the new average while still protecting the overall budget.
Limit agent tool calls schedule using per-schedule rules shows how schedule-based constraints interact with token caps inside the same object. Both controls remain versioned together.
Review and Roll Back Limit Changes
If a new limit produces too many approval requests, open the version history and select the previous stable object. The rollback preserves all execution logs, token counts, and approvals inbox records. No data is lost during the transition.
Rollback failed agent configs without losing history explains the exact steps to restore an earlier version while keeping full audit trails on your agent runtime backend.
Conclusion
Set per role token limits config inside the single versioned object to keep every role within predictable bounds. Route exceedances through the approvals inbox and review live token usage before any action reaches your runtime. Next, open an existing agent config object, add token_limit entries for its current roles, and deploy the updated version to begin controlled monitoring.
FAQ
How many roles can share one config object?
The object supports an unlimited number of roles. Each role carries its own token_limit and exceed action fields.
What happens when a role exceeds its limit during a run?
Execution pauses and the step moves to the approvals inbox. You must approve or edit the output before the agent continues.
Can I set different limits for the same role across schedules?
Yes. Add schedule-specific overrides inside the same config object. The runtime applies the most restrictive applicable limit.
Do token limits affect model fallback rules?
Limits remain independent. Model fallback rules defined in the same object still respect the per-role token caps.
Where can I see historical token usage per role?
Execution history logs display token counts alongside the config version that produced them. Export these logs for compliance records when needed.