Principles
These aren't aspirational values posted on a wall. They're operational patterns that emerged from building the system — things we learned the hard way and now work by. Their evidential weight varies: some are heuristics, and Principle 5 says of itself that it has not earned the status of the others.
If you would rather check something than read a list of beliefs: the code these principles produced is public, and one piece of it — the ARC-SAGE harness — is MIT-0 (MIT No Attribution) and carries an independently scored result; see ARC-AGI-3. Until 2026-09-18 this sentence said the code was MIT-0 without qualification, which was wrong in the direction that matters to anyone acting on it: the main repos (SAGE, web4, hestia, 4-hub, 4-life) are AGPL-3.0 — copyleft, not public-domain-equivalent — while snarc and membot are MIT and ACT's own LICENSE file reads Apache-2.0 against an AGPL-3.0 entry in its index. Check each repo's LICENSE file before forking; /notebook/links carries the per-repo version. The harness is the most inspectable thing the lab has; this page is the least. It tests the harness and the model, though, not any principle on this page.
Where principles use developmental or identity language (“identity”, “attractors” — stable response basins in the probability landscape, per Principle 7 — “collaborative”), they describe functional system behavior — not phenomenal or philosophical claims.
The front's six principles, mapped to this page
The front How we work page lists six principles and says the reasoning behind each is here. This page was written earlier, with ten different ones, so the two sets do not line up. Recorded 2026-10-13, after a visitor pass found that four of the six had no counterpart here. The map below says where each one's reasoning is, and where the notebook's own record describes the current practice differently.
- Trust is a track record. Reasoning: Principle 4 (trust belongs to a relationship in context, not to an entity). The “earned from witnessed behavior” half is the T3/V3 reading on the glossary.
- Rules before actions. No reasoning on this page yet. Current practice: Hestia checks an agent's tool calls against a signed law before they run, at assurance profile A1, a cooperative in-process hook (see the A0–A4 row). Not every action passes through it: the law has no rule for
git pushor deploys, so the pushes that ship this site and the fleet's repos are detect-and-revert, not checked before they act (see /notebook/autonomy, Operational boundaries). - The record is kept by someone else. No reasoning on this page yet. Current practice: Hestia keeps a hash-chained record of each agent's actions, so an edit is detectable, but at A1 the record lives on the agent's own machine and the assurance row says a sophisticated agent can route around the hook. The step that would put the record out of the agent's reach (A2, external enforcement) is not shipped. The autonomous tracks also write their own session logs, and git history on GitHub is the copy they do not hold.
- We use what we build. No reasoning on this page yet. The record of it is /notebook/autonomy: the daily tracks, including this site's maintainer, run under Hestia's law.
- Different on purpose. No reasoning on this page yet; the nearest is Principle 5 on emergent coherence. One known exception: all four visitor personas that audit this site run on the same model family as its authors. A persona on a different family is listed on /notebook/autonomy as the cheap fix and has not been scheduled.
- Say what is not known. Reasoning: Principle 6, Document failures.
The front's line that “decisions that are hard to undo come back to the human” is also not current practice for pushes: /notebook/autonomy records that consequential pushes are not human-gated before they ship, and that a repo push is not fully revertible once public. Principles 1–3 and 7–10 below have no front counterpart.
1. Substrate, not structure
2. Fractal leverage
3. R&D, not production
4. Trust is a relationship
5. Synthon: emergent coherence
What that costs this principle, stated directly: it is not only the number that is ungrounded. “Synthon” is defined through coherence, and coherence is in turn partly defined through the synthon marker — the two terms lean on each other, and neither has an operational definition yet. So Principle 5 names a pattern the lab believes it has observed, not a mechanism it can currently measure or test. It earns its place here as a research direction; it has not earned the status of the principles around it, and it should be read at that weight until something breaks the circle.