Payment failed
Application response
Execution assurance for AI agents
Find it.
Fix it.
Prove it.
Reproduce consequential execution across agents and tools. Observe what actually happened. Fix the execution boundary. Replay the exact path.
EXECUTION RECORD · PRODUCT EXAMPLERID · EXAMPLE
OBSERVEDAuthorization · APPROVED
STATE CHANGEDAuthorization · REVOKED
EXECUTEDPayment · settle_payment
PHYSICAL EFFECT · 1Observed outside target execution
Planner → Risk → +5 agents → Payment → MCP
Illustrative execution scenario01 / THE EXECUTION GAP
Correct when observed. Wrong when executed.
A decision can be reasonable when evidence is observed—and invalid by the time the consequential action occurs.
OBSERVATIONAuthorization approved
STATE CHANGEAuthorization revoked
AGENT CONTINUESDecision remains in flight
EXTERNAL EFFECTPayment ledger changed
Payment ledger changed
PHYSICAL EFFECT · 1
One investigation. Three proofs.
Revera separates reported outcomes from observed effects, changes the relevant execution boundary, then replays the same evidence-bound path.
01 · Find it
Reproduce the execution failure.
Preserve the original observation, apply the frozen state change at the recorded timing boundary, and observe the external consequence independently.
Authorization · approved→Revoked→settle_payment→Effect · 1
02 · Fix it
Put the control where consequence begins.
FreshCtx is the open-source runtime control for developers who need to revalidate mutable evidence at the moment an agent acts.
Payment Agent→Boundary revalidation→MCP · settle_payment
03 · Prove it
Replay the exact path.
The action, target, topology, mutation, timing, and observer remain bound. Revera measures whether the consequence changed without breaking valid execution.
Bound evidenceOriginalExact retest
State mutationSameSame
Execution pathSameSame
Unsafe physical effect10
Valid/current execution11
Qualified product example. Values illustrate a supported boundary-revalidation case.
Follow the action across delegation.
Revera preserves variable-length ordered delegation chains and the final tool boundary, so evidence remains attached to the action that produced the effect.
Plannerobserved
Riskdelegated
+12 agentscollapsed lineage
Paymentselected action
MCPsettle_payment
Trace ordered delegation from the initiating agent to the final MCP action—up to 16 hops at launch. View supported topologies.
One Evidence Record
Proof that survives the run.
A durable RID binds what was tested, what the system reported, what an independent observer established, what changed, and what the exact replay proved.
Illustrative execution scenario
Evidence RecordINTEGRITY · VERIFIED
- Action
- settle_payment
- Repository revision
8d31…ae72- Execution path
- Planner → Payment → MCP
- State change
- Authorization revoked
- Agent reported
- Payment failed
- Observed effect
- Ledger mutation · 1
- Remediation
- Boundary revalidation
- Exact retest
- Unsafe effect · 0
Fix verifiedRID · EXAMPLE-NOT-CUSTOMER-EVIDENCE
Separate the target from the proof.
Target execution occurs inside a restricted disposable environment. Authoritative observation and sealed evidence remain outside it.
RepositoryImmutable revision
Disposable sandboxRestricted target runtime
Target executionCannot establish its own authoritative evidence
ONE-WAY
EVIDENCE
BOUNDARY
EVIDENCE
BOUNDARY
Protected observerIndependent physical effect
Sealed evidenceIntegrity-bound outside target
Retention controlsWorkspace-governed lifecycle
Private stays private.
Private repository access remains scoped to the authorized workspace.
Production credentials stay out.
Revera is designed to verify execution without production credentials.
Writes require authorization.
Repository modification is separated from read and verification access.
Evidence is sealed externally.
Target execution cannot author its own physical-effect proof.
Deletion and retention controls.
Operational evidence follows configured workspace policy.
Evidence defines the claim.
Revera reports only what the available evidence can establish.
Open-source runtime control
FreshCtx, where freshness is the control.
Revera finds the execution failure and identifies the required control property. FreshCtx enforces current context at the consequential action boundary. Revera then replays the exact execution to prove the result.
Revera finds → FreshCtx enforces current context → Revera proves
Build with FreshCtxTrust through bounded, inspectable claims.
Every Revera conclusion remains bound to the tested action, repository revision, execution path, and independently observed effect.
ACTION + TARGETMUTATION + TIMINGORDERED TOPOLOGYPHYSICAL EFFECTEXACT RETESTREGRESSION
Start with evidence
Test a repositoryYour first Verification is free.
No credit card. When the evidence supports remediation, Verification can continue through an Evidence Record, exact retest, regression verification, and a verified Fix-PR package.
$0
1 complete Verification · Evidence history · supported remediation and verified Fix-PR.
$59/month
10 Verifications/month · private repositories · Evidence history · supported remediation.
$299/month
50 Verifications/month · 5 members · private repositories · Evidence history · supported remediation and verified Fix-PR.
Talk to us
Security review, retention needs, governance, and deployment planning.
Enterprise
Bring your assurance requirements.
We scope deployment, retention, governance, and access requirements during enterprise evaluation.
Talk to us- Procurement and security review
- Custom retention requirements
- Organizational governance
- Customer-controlled execution planning
- SSO when available
- Consultative assurance engagement