Before your AI agent writes, Check Write™.

Tell Check Write™ what the agent is about to do. It resolves what must be true, evaluates the available evidence, and returns Allow, Pause, or Block.

If it pauses, you know exactly what is missing.

Allow. Pause. Block.

Built by TekCapitol · Hosted to try · Private to run

Try Check Write™ → View on GitHub

AI agent is about to: Submit a $125,000 payment instruction

Target: Payments platform

Check Write™ resolved 7 requirements · 5 satisfied · 2 need attention · PAUSE

Missing: one additional eligible approval · fresh fraud/risk evidence. Fix it. Retry Check Write™. Execute only on Allow.

Check Write payment change on hold for review. Identity, authority, company payment rules, and required approvals passed. Risk level needs review before a $240,000 payment change can proceed.
Example Check Write™ decision · plain-language checks, one item needs review

Runtime gate

Check Write™ is the runtime gate from TekCapitol.

It sits immediately before a consequential AI agent action and determines whether that action should proceed now.

TC Diagnose™

Adds deeper context. Evaluates the broader agent/workflow and finds structural readiness gaps before production.

Need the deeper picture? →

TC Fix™

Remediates structural gaps. SQL, YAML, approval workflow changes, role mappings, connector setup.

Close structural gaps →

TC Protect™

Production control layer around Check Write™. Trace, evidence, and operational controls at scale.

Production control layer →

Requirements-aware

You do not have to hard-code every governance rule into your agent.

Your application tells Check Write™ what the agent is about to do. Check Write™ resolves the applicable requirements from the agent, workflow, action, business rules, policy context, and evidence requirements.

More context needed? Add metadata. Check Write™ can operate from decision-relevant metadata and evidence references. Raw production data is not required by default.

When Check Write™ pauses

It tells you what to do next.

Add Context

Use metadata, schema, workflow, or configuration to supply missing structural context.

Obtain Evidence

Get the missing approval, signoff, or authority evidence.

Refresh Evidence

Revalidate stale evidence before the action can proceed.

Fix Structural Gap

Open TC Fix™ when the workflow cannot satisfy the requirement structurally. Verify the fix. Retry Check Write™.

Scope

When does Check Write™ matter?

Use Check Write™ anywhere an agent can make a high-impact change.

Change business data

Updates that alter records, transactions, or operational state.

  • System-of-record updates
  • Business transactions

Move or grant something

Financial movement and permission changes with real consequence.

  • Money movement
  • Access changes

Act outside the agent

Outbound actions and tool calls that create meaningful impact.

  • External sends
  • High-impact tool actions

Explore all 77 consequential-action scenarios →

Platform

From readiness to runtime control.

TC Diagnose™ maps gaps. TC Fix™ closes them. TC Protect™ is the production control layer. Check Write™ is the runtime decision point immediately before consequential actions.

TC Diagnose™

Find production-readiness gaps.

Identify what prevents a workflow from reaching production safely.

Learn more →

TC Fix™

Close the gaps.

Remediation guidance and control packs for gaps surfaced by diagnosis.

Learn more →

TC Protect™

Protect consequential execution at runtime.

Trace, evidence, operational controls, and policy enforcement.

Learn more →

Includes Check Write™

The runtime control developers call immediately before consequential execution. Reviewers see what was checked in plain language before they decide.

Try Check Write™ →

TC360® methodology: Diagnose → Fix → Protect

Production

Hosted to try. Private to run.

Use TekCapitol's hosted environment for developer evaluation and sandboxing. Deploy Check Write™ inside your VPC or on-prem environment for production.

Customer-owned execution

TekCapitol never executes the customer’s action. Your application owns the action.

Called control

Your application explicitly calls Check Write™ before execution.

Evidence

Retain decision evidence and traceability.

Deployment

Hosted, VPC, private cloud, or on-prem where supported.

Private runtime

Your agent, policies, metadata, evidence, and runtime decision path can remain inside your environment. The SDK must target your private endpoint for local processing.

Security & deployment →

One call immediately before the consequential action.

Tell Check Write™ what the agent is about to do. Install the SDK, get an API key, or try the hosted playground.

npm install @tekcapitol/tc-protect-sdk
Install SDK Read Docs Get API Key

Quickstart → · Enterprise buyers →