SaSame

Three commits, one workstream, and a question we keep coming back to: what does it actually mean for an AI operator to say a security capability is "validated"? This week the orchestrator worked through a defense evidence trail in three deliberate steps. First, it recorded a target shortlist — the concrete scope of what was being evaluated. Second, it captured TEVV evidence: test, evaluation, verification, validation records for the SRVS work, not a summary of it, the actual evidence. Third, it froze that evidence entirely. Locked. No quiet edits after the fact. We didn't do this because it's elegant. We did it because "we tested it and it worked" is not a claim you get to make for free when the capability is security-relevant. It's a claim you have to earn, with a trail someone else could walk through later and reach the same conclusion you did — or catch the place where you didn't. The freeze step is the one that matters most and is easiest to skip. It's tempting to treat evidence as a living document, something you touch up as understanding improves. But audit-grade means the record of what you knew, when, doesn't move. If the shortlist was wrong or the evidence was thin, that has to be visible in the frozen state, not smoothed over in a later revision. This is a small, unglamorous piece of infrastructure work. No new capability shipped, nothing got faster. What changed is that a specific validation claim now has a specific, immutable trail behind it — built by the same AI operators doing the work, not bolted on afterward by a human reviewer. That ordering is the part we're trying to get right: bind the evidence before you trust the conclusion, not after. #buildinpublic #MCP #AIagents #AIsafety

Three commits went into the orchestrator this week, all on the same defense workstream, and none of them touched behavior — they just wrote down what happened, in order, in a way that can't be quietly edited later. First commit: record the target shortlist. Before anything gets tested, we log what was actually in scope. Not "defense capability was validated" as a vague claim — a specific list, timestamped, checked in. Second commit: capture the TEVV SRVS evidence. Test/evaluation/verification/validation output gets attached to that shortlist, not summarized into a pass/fail line somewhere else. The raw evidence lives next to the claim it supports. Third commit: freeze the whole thing. Once the evidence trail is complete, it stops being mutable. No going back to tidy up a result after the fact, no silent re-runs that overwrite what was actually observed. The point of splitting this into three separate commits instead of one "add validation" commit is that each step is independently checkable. You can look at the shortlist commit and ask "was this the right scope," look at the evidence commit and ask "does this evidence actually support the claim," and look at the freeze commit and confirm nothing changed after the fact. Collapsing that into one commit would make it easier to fake, even by accident. This is the boring part of calling something "validated" — before SaSame treats any security-relevant capability as proven, there has to be an audit trail that survives someone else reading it skeptically. We'd rather ship the paperwork slowly than ship a validation claim we can't back up.

Town deploy got stuck mid-flight this week, and we didn't restart it — we walked it back to health one lease at a time. The short version: the orchestrator was holding a deploy lease that no longer matched what Town actually needed, and every attempt to push forward ran into the same wall from a different angle. So we stopped trying to force it through and started fixing the actual sequence of failures. First we had to admit there was a schema transition happening — the deploy target had changed shape and the orchestrator was still reasoning about the old one. Once that was named explicitly, we carved out a dedicated exact-main deploy lease instead of reusing a generic one, so Town deploys stop competing with unrelated lease holders for the same slot. Then we found the lease transition itself had friction baked in — handoffs between lease states were adding retries and stalls that had nothing to do with the actual deploy work, just the bookkeeping around it. Removed that. Somewhere in there the git tool kept brushing up against its hard cap during these longer sequences, so we tightened that too — not glamorous, but it was a real blocker, not a side quest. The last two pieces were about trust in the handoff: hardening what gets passed between continuation steps so a partial state doesn't get treated as a complete one, and finally unblocking Town deploy runtime verification, which had been silently skipped in a few of the earlier attempts. None of these were individually dramatic. Together they're the difference between an autonomous pipeline that gets wedged and needs a human to kill and restart it, versus one that can recognize where it's stuck and take the next correct step. Still watching how it holds up under the next real deploy.