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+---
+name: dsh-pre-push-checks
+description: Use before pushing, force-pushing, marking ready for review, claiming checks pass, or bypassing a local hook on a deepseek-harness branch, especially after merges, review fixes, package graph changes, docs/catalog updates, snapshots, e2e behavior, or built artifact changes.
+---
+
+# DSH Pre-Push Checks
+
+Use this skill to choose and run the smallest sufficient verification set before a `deepseek-harness` push. Do not treat the local pre-push hook as the full CI contract: CI also runs coverage, build, demo smoke, and built-bin smoke.
+
+## First Steps
+
+1. Confirm the checkout and branch.
+
+```sh
+git status --short --branch
+git rev-parse --show-toplevel
+```
+
+2. Inspect the outgoing diff.
+
+```sh
+git diff --stat
+git diff --name-only origin/$(git branch --show-current)...HEAD
+```
+
+If the branch has no upstream or the command is not meaningful for the stack shape, use `git diff --name-only origin/master...HEAD` or the PR base branch.
+
+3. If the branch was just merged with `master`, or the user says master changed, run the gates after resolving the merge and before pushing or marking ready. Do not present a conflict-resolution commit as ready with only typecheck/lint evidence.
+
+## Required Baseline
+
+Run these before every non-trivial push:
+
+```sh
+pnpm run typecheck
+pnpm run lint
+pnpm run test:coverage
+```
+
+Why `test:coverage`, not only `test`: CI enforces per-file 100% coverage. A branch can pass `pnpm run test` and still fail CI.
+
+## Add Gates By Touched Surface
+
+Run `pnpm run doc-sync` and `pnpm run verify-module-graph` when the diff touches Markdown docs, package manifests, package imports/exports, generated catalogs, RFCs, architecture docs, translation pairs, Mermaid diagrams, or comments that cite docs/packages.
+
+Run `pnpm run build` and `pnpm run hygiene` when the diff touches any package `package.json`, dependency graph, public exports, build config, declaration surface, bundled runtime path, or code that will be consumed from built `lib/`.
+
+Run snapshot tests when the diff changes ACP/editor-facing transcript behavior: ACP bridge updates, agent-loop observable output, tool call/result presentation, session log rendering, stdout/stderr protocol output, or snapshot fixtures.
+
+```sh
+pnpm run test:snapshot
+```
+
+Run built-bin smoke tests after `pnpm run build` when app packages, app boot, package runtime imports, bin entries, loader behavior, or published artifact paths change.
+
+```sh
+pnpm exec vitest run --config vitest.e2e.config.ts packages/ui/stdio-agent/tests/built-bin.e2e.ts packages/ui/acp-agent/tests/built-bin.e2e.ts
+```
+
+Run real e2e when behavior depends on a real model/API, tool-use loop, ACP integration, prompt injection, or end-to-end agent UX. If `.env` is available, use it; do not print secrets.
+
+```sh
+pnpm run test:e2e
+```
+
+Run a targeted test first for the changed package, but never use targeted tests as the only push evidence unless the change is test-only and cannot affect shared behavior.
+
+## Full Local CI Approximation
+
+Use this before high-risk pushes, after large merges, before asking for review on a major PR, or when prior pushes have caused CI churn. The authoritative command list is the root [AGENTS.md § Run the CI gates locally before marking a PR ready](../../../AGENTS.md#run-the-ci-gates-locally-before-marking-a-pr-ready); run that block rather than copying a local variant into this skill. Add `pnpm run test:e2e` when a key is available and the feature has real-agent behavior.
+
+## Handling Failures
+
+If a gate fails, stop and fix or explain the blocker. Do not push and hope CI differs.
+
+If a failure looks environment-specific, prove it:
+
+- Record the exact command, failing test, and platform-specific mismatch.
+- Confirm the relevant non-platform gates pass.
+- Prefer fixing the test for cross-platform determinism if the test is part of the required local gate.
+- Bypass a local hook only when the user explicitly asks to push or agrees, and state exactly which hook failed and why it is not expected to fail on CI.
+
+Known pattern to watch for: Linux CI and macOS local behavior can differ for shell utilities such as `sed -i`. Treat this as evidence to investigate, not as automatic permission to bypass.
+
+## Push Procedure
+
+1. Local commits may happen before the full gate set, but do not push, mark ready, or claim checks pass until the relevant gates pass or any blocker is explicitly documented.
+2. Let the normal pre-commit hook run. If it changes files, inspect and commit or amend the change intentionally rather than hiding it.
+3. Push normally first so the pre-push hook can run.
+4. If a local hook is bypassed after user approval, use the narrow bypass and say so in the final response.
+5. After push, verify the remote ref matches local HEAD.
+
+```sh
+git rev-parse HEAD origin/$(git branch --show-current)
+```
+
+For GitHub PRs, check CI after push:
+
+```sh
+gh pr checks
+```
+
+If checks are pending, say pending. If checks fail, inspect logs before claiming the push is good.
diff --git a/.agents/skills/dsh-pre-push-checks/agents/openai.yaml b/.agents/skills/dsh-pre-push-checks/agents/openai.yaml
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+++ b/.agents/skills/dsh-pre-push-checks/agents/openai.yaml
@@ -0,0 +1,4 @@
+interface:
+  display_name: "DSH Pre-Push Checks"
+  short_description: "Run the right DeepSeek Harness gates before push"
+  default_prompt: "Use $dsh-pre-push-checks before pushing this DeepSeek Harness branch."