What Did My Agent Do?
Show HN: Check whether agent logs are independently verifiable
Last verified:
What is What Did My Agent Do??
What Did My Agent Do? is a browser-based tool that helps users analyze AI agent logs, traces, JSON, or signed records to determine what is merely observable versus what another party can independently verify. The tool runs entirely locally in your browser using native WebCrypto Ed25519 for signature verification, making it a privacy-focused diagnostic utility for incident reviews, disputes, payment questions, and audit evidence.
What Did My Agent Do? pricing
Pricing model: Freemium
Free standalone public utility. No paid plans. The tool is completely free to use with no signup required. Runs entirely client-side in your browser with no server uploads. Built by Originary but does not require adopting PEAC or buying anything to use.
What Did My Agent Do? pros
- Runs entirely locally in browser with no data upload
- Native WebCrypto Ed25519 signature verification
- Open source with public source code
- Portable record format (PEAC protocol support)
- Verifies Ed25519 signatures for signed records
- Provides evidence structure score out of 100
- Classifies input type automatically
- Standalone public utility, no product required
- Supports issuer key resolution with URL shown first
- Helps separate local observability from verifiable evidence
- Useful for incident review workflows
- Useful for vendor and customer disputes
- Useful for payment and authorization questions
- Useful for audit and compliance evidence
- Supports JWK and JWKS key formats
What Did My Agent Do? cons
- Heuristic score, not a formal audit
- Does not confirm timestamps are authentic
- Does not confirm policy bindings are authentic
- Valid signature does not prove claims are true
- Only verifies issuer and record integrity
- Structural scorecard is heuristic not formal
- Requires manual key pasting or issuer resolution
- Does not replace auth, observability, or payment systems
Frequently asked questions about What Did My Agent Do?
What does this analyzer actually do?
It classifies pasted input and scores evidence-related structure such as issuer fields, timestamps, policy references, and signed-record shape. It helps separate local observability from independently verifiable evidence.
Does this page verify cryptographic signatures?
Yes, for signed records. Paste a compact JWS interaction record and the page verifies its Ed25519 signature in your browser using native WebCrypto, against a key you paste or an issuer key you choose to resolve. A valid signature proves who issued the record and that it was not altered; it does not assert that the claims inside are true. The structural scorecard for logs, traces, and JSON is heuristic.
Does this replace auth, observability, or payment systems?
No. Signed records are additional evidence that can travel across parties. They complement auth, payment rails, observability platforms, and runtime infrastructure.
Who is this for?
Teams handling incidents, customer disputes, payment questions, or audits where another party needs independently verifiable records.
Is this tied to PEAC or Originary?
You do not need to adopt PEAC or buy anything to use this checker. The page is a standalone public utility. It uses PEAC-style signed-record concepts in the sample format, and the source is public. Built by Originary.
What happens to my pasted data?
Analysis and signature verification run entirely client-side. Your pasted input is never uploaded, stored, or sent to any server. The only network request the page can make is an issuer-key lookup you explicitly trigger, and the exact URL is shown before your browser requests it.
What does a valid signature prove?
A valid signature proves who issued the record and that it was not altered. It does not assert that the claims inside the record are true.
What is the evidence score out of 100 based on?
The score is heuristic, based on detectable evidence structure such as issuer fields, timestamps, policy references, and signed-record shape. It is not a formal audit.
What formats can I paste?
You can paste logs, traces, JSON, or a signed record (compact JWS interaction record in PEAC-style interaction-record+jwt format).
What use cases does this tool support?
Incident review, vendor and customer disputes, payment and authorization questions, and audit and compliance evidence. It helps when screenshots and log excerpts are not enough for multi-team or multi-vendor incident reviews.