docs(workspace): add coverage remediation prompt

.github/prompts/workspace-coverage-remediate.prompt.md

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+---
+name: workspace-coverage-remediate
+description: 'Take the top safe coverage actions from a workspace audit and implement them incrementally with validation and isolated commits.'
+argument-hint: Scope or remediation plan, for example "top 3 safe fixes", "web only", "Local Memory GPT and FlowMonk", or "tests only no source changes"
+agent: agent
+---
+
+Use the current workspace coverage findings to take the safest, highest-signal remediation actions across the current multi-repo workspace.
+
+## Goal
+
+Select a small number of low-risk, high-value actions and complete them end to end.
+Default to the top 3 safest actions unless the user specifies a different scope.
+
+## Safety Rules
+
+- Respect repo boundaries.
+- Respect existing dirty worktrees and other in-progress changes.
+- Stage and commit only the files you changed.
+- Prefer isolated incremental commits, one repo or one logical fix at a time.
+- Avoid broad refactors.
+- Do not fix unrelated failures.
+
+## Selection Heuristics
+
+Prefer targets that are:
+
+- pure logic modules
+- thin API clients or wrappers
+- hooks with deterministic behavior
+- small uncovered utilities
+- test-only additions when they add meaningful confidence
+
+Avoid by default:
+
+- broad UI snapshot work
+- unstable E2E surfaces
+- setup-heavy mobile or native test changes
+- changes that require dependency installation unless explicitly approved
+
+## Execution Process
+
+1. Review the current coverage findings or infer them from nearby reports and tests.
+2. Choose the smallest safe target.
+3. Implement the change.
+4. Run targeted validation first, then repo-level validation if reasonable.
+5. Commit only your files with a conventional commit message.
+6. Repeat for the next target until the requested scope is complete.
+
+## Output Requirements
+
+For each remediation step, report:
+
+- chosen target
+- why it was selected
+- files changed
+- validation run
+- commit hash
+- remaining risks or blockers
+
+## Default Mode
+
+If no argument is provided:
+
+- take the top 3 safe actions
+- prefer web and shared-package targets first
+- keep each change small and independently commit-ready
+
+## Constraints
+
+- If a repository is dirty, work around unrelated changes rather than reverting them.
+- If a target conflicts with other active changes, skip it and choose the next safe candidate.
+- If no safe code change is available, produce a ranked remediation queue instead of forcing edits.