Advance the canonical producer pins with current-head witness evidence

[flyingrobots]

Outcome

Advance Hello Echo's canonical producer coordinate to the current compatible Edict and Echo heads, with the full fake-free witness suite attached to the pull request evidence.

Current evidence

The canonical lock on main currently records:

• Edict df80f92ad6242c6da31a64224666fd37aa43b0d0;
• Echo c354d531679861fb7bbd52ab7b7703807909ab86.

After fetching on 2026-08-15, current producer heads were:

• Edict df80f92ad6242c6da31a64224666fd37aa43b0d0;
• Echo 490134c0753a3df6a74da366cc71c1248764dc5a.

A disposable local compatibility probe changed only the Echo coordinate in producers.lock.json and passed all three current-main suites:

• ./tests/runtime.sh;
• ./tests/effect-runtime.sh;
• ./tests/patch-runtime.sh.

This is supporting evidence for a reviewed pin-advance PR, not publication authority by itself.

Acceptance criteria

• Advance producers.lock.json to the exact current producer commits selected by the implementation PR.
• Re-corroborate every vendored Edict lawpack/resource and Echo provider artifact byte-for-byte.
• Run the pure compiler-to-runtime witness, bounded observation witness, validated patch witness, stale-output witness, writer-epoch assertions, formatting, and generated-host Clippy gates.
• Record old and new producer coordinates plus the exact witness results in the PR.
• Preserve the rule that producer checkouts must match the lock and be clean.
• Preserve fake-free execution: no handwritten Echo package, native application callback, application-specific Echo branch, or compatibility fallback.
• Merge only when the required CI witness gate passes at the proposed coordinates.

Non-goals

• Do not make producer freshness a required red CI condition.
• Do not implement the scheduled advisory automation proposed by COOL IDEA™: advance producer pins by evidence-bearing PR, never by failing CI on staleness #31 in this slice.
• Do not change application semantics merely to advance the pin.
• Do not claim compatibility with commits not named and executed by the evidence-bearing PR.

Related

• COOL IDEA™: advance producer pins by evidence-bearing PR, never by failing CI on staleness #31 tracks the durable scheduled pin-advance workflow.
• Track Graft hosted by Echo over admitted workspace effects #12 tracks downstream Graft adoption of the proven Edict-on-Echo boundary.

[coderabbitai]

🔗 Related PRs

#17 - Prove durable Hello Echo execution [merged]
#20 - Record dependency-satisfied review outcomes [merged]
#21 - Prove typed Hello Echo result recovery [merged]
#22 - Prove bounded workspace observation [merged]
#27 - Bind observation settlements to their basis evidence [open]

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