Goalpost: Jim Evidence Gate for Echo v0.1.0

[flyingrobots]

Goalpost

Satisfy the jedit/Echo release gate: a clean jedit checkout can submit app-safe work, trusted Echo host schedules it, Echo emits outcome/read evidence, retained evidence is inspectable, and replay proves the same result.

Slices

• Slice: Export ReadingEnvelope identity for app consumers #628 Slice: Export ReadingEnvelope identity for app consumers
• Slice: Stabilize contract obstruction taxonomy for Jim #629 Slice: Stabilize contract obstruction taxonomy for Jim
• Slice: Return retained receipt and reading evidence refs #630 Slice: Return retained receipt and reading evidence refs
• Slice: Preserve trusted-host scheduler split for jedit witness #631 Slice: Preserve trusted-host scheduler split for jedit witness
• Slice: Add replay proof for Jim edit and bounded reading #632 Slice: Add replay proof for Jim edit and bounded reading
• Slice: Define canonical digest domains for observation evidence #633 Slice: Define canonical digest domains for observation evidence

Done When

• App-safe submission works from sibling jedit repo.
• Trusted host, not app code, owns scheduler opportunities.
• Bounded QueryView reading returns ReadingEnvelope identity and posture usable by Jim.
• Retained receipt/reading evidence refs and replay posture are available to the witness.
• Echo core contains no Jim product nouns.

Coordination

Cross-repo dependencies: jedit WF-0108A - :why Observation Evidence; Continuum Continuum Protocol - Observation Evidence And Capability Proofs for portable protocol/profile vocabulary only; Jim remains an Echo app and Jim/Echo integration does not go through Continuum.

This issue is the repo-local goalpost for the Jim/Echo/Continuum :why observation-evidence roadmap.

[coderabbitai]

🔗 Related PRs

#329 - Stack Witness 0001 fixture-backed jedit walking skeleton [merged]
#365 - feat(wesley): emit query observer host helpers [merged]
#368 - feat(core): connect installed contract intent pipeline [merged]
#380 - feat(core): expose retained evidence posture on readings [merged]
#582 - docs: define the Echo 1.0 release contract and move live planning to GitHub [merged]

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[flyingrobots]

Supported Outcome Settlement lock-in added #640 to this milestone.

For Jim Evidence Gate, Echo should publish attempt outcomes precisely enough for Jim and downstream support ledgers to distinguish committed success, legal unselected counterfactual, obstructed attempt, repair candidate, invalid proposal, and runtime fault. This is outcome vocabulary and retained evidence posture, not a requirement for proof-carrying execution.