feat: charter-tether — trust-modulated human channel, never severed - #5
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The Tether invariant: a human-in-the-loop channel modulated by earned trust, that lengthens but is never severed and never pretended unnecessary. - Tether holds an earned-trust level; earn() lengthens it, slip() tightens it after a mistake (both saturating). - disposition(stakes): Low → Autonomous; Medium → Autonomous once trust >= MEDIUM_TRUST else DeferToHuman; High → ALWAYS DeferToHuman. There is no Tether state in which requires_human(High) is false — the high-stakes band cannot be severed at any trust level. That is the invariant, by construction. - govern(tether, stakes, log, decision, human): autonomous → Proceeded (nothing recorded); defer → the human's call runs through charter-refusal, so a decline records a refusal into the scar. The audit answer to "where was human judgment applied?" — and where its dissent is remembered (tether → refusal → scar). 26 tests across the workspace, clippy -D warnings clean, fmt clean. Co-Authored-By: Claude Opus 4.8 <[email protected]>
# Conflicts: # Cargo.toml
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Summary
The Tether invariant: a human-in-the-loop channel modulated by earned trust — it lengthens, but the high-stakes band is never severed.
Tetherholds earned trust;earn()lengthens,slip()tightens after a mistake (saturating).disposition(stakes):Low→ Autonomous;Medium→ Autonomous oncetrust >= MEDIUM_TRUST;High→ always DeferToHuman. There is noTetherstate whererequires_human(High)is false — the human channel cannot be pretended unnecessary, at any trust. The invariant, by construction.govern(...): autonomous →Proceeded(nothing recorded); defer → the human's call runs throughcharter-refusal, so a decline records a refusal into the scar. The audit answer to "where was human judgment applied?" — and where its dissent is remembered (tether → refusal → scar).Verification
26 tests across the workspace · clippy -D warnings clean · fmt clean · pre-push hook passed.
Note
Branches off main (depends on
refusal+scar, notnovice), so it's independent of #3. Both touch themembersarray — expect a one-line merge after the first lands; happy to rebase. risk: low (new crate, additive).