FE-1431: Build the plugin authoring surface (cycle two)

[lunelson]

🌟 What is the purpose of this PR?

Cycle two of the plugin authoring loop: both plugins and the repertoire are rewritten against the cycle-one review findings, the two key shapes that review demanded are changed (pattern slots and the precision list), and the key catalogue is declared frozen under ADR-0007 decision 9 because the cycle changed no key.

Draft: opened so the stack is visible end to end. The description is completed when the branch is tied off.

🔗 Related links

• FE-1431 (internal; owning issue)

🚫 Blocked by

• Stacks on ln/fe-1505-timing; lands after it.

🔍 What does this change?

Pattern slots scoped to failing slots with wildcard validation; alternative precision demands; repertoire teaching conditioned on plugin precision; the cycle-two content pass, review resolution, freeze, and its evidence readout; the Brunch evaluation runner kept in pruned app jobs.

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

• does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

• are internal and do not require a docs change

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[lunelson]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• FE-1507: Move the repertoire into core behind a guarded prompts subpath #9349 : 2 dependent PRs (#9355 , #9381 )
• FE-1431: Build the plugin authoring surface (cycle two) #9348 👈 (View in Graphite)
• FE-1505: Time each interviewer turn by purpose #9347
• FE-1506: Show captures and completion while a panel elicitation runs #9346
• FE-1504: Run the process-model elicitor from the Petrinaut panel on one owned document #9345
• FE-1431: Build the plugin authoring surface #9337
• FE-1406: Audit the harness-teaching lineage and propose the fixed-key plugin contract (ADR-0007) #9327
• FE-1497: Build the controller read path and the SDCPN plugin package #9325
• FE-1404: Run condition 3 as the walking skeleton #9322
• FE-1403: Assemble and test the CPS interview guidance #9321
• FE-1402: Define and rehearse the elicitation completion contract #9320
• FE-1407: Catalogue elicitor failures that published measures miss #9319
• FE-1480: Project and realize a CPS model as a Petrinaut SDCPN #9313
• FE-1495: Prevent Brunch TypeScript contracts from drifting #9312
• FE-1494: Keep Brunch strategy and control records coherent #9311
• FE-1437: Move brunch-agent into hashintel/hash with its history #9274
• main

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[cursor]

PR Summary

Low Risk
Changes are documentation, evaluation artifacts, and CI copy rules for pruned repertoire jobs; no production runtime or auth paths in this diff.

Overview
Cycle-two evaluation evidence is reorganized: cycle-one live-arm transcripts move under transcripts/cycle-1/, current condition 4–5 artifacts stay at transcripts/, and steering/index/latency/readout links follow. The baseline readout adds a cycle-two section that freezes the ADR-0007 key catalogue (no new keys) and routes node identity, quote repair, delivery classification, and expert-stop termination to harness work (FE-1383).

Glossary updates in CONTEXT.md: patterns machine-match on kind plus an optional unsatisfied demand slot; repertoire entries may declare applicable value grades, with the harness matching plugin demand rows.

The archived condition-4 system prompt (condition-4-system.md) is refreshed to the cycle-two teaching render—alternative precisions on several demand rows, expanded repertoire guidance (lenses, techniques, movements, licenses, motifs, smells, rabbit holes, kickoff/close), pattern P02 and value-grade wording, and named stopping outcomes.

CI prune: jobs scoped to @hashintel/brunch-agent-repertoire now copy sibling plugin-sdcpn and plugin-gherkin plugin.yaml files (repertoire tests load them by relative URL), with a unit test in prune_test.py.

^{Reviewed by Cursor Bugbot for commit e6c5c5b. Bugbot is set up for automated code reviews on this repo. Configure here.}