microsoft/generate-ppmplugin

/generate-ppmplugin

The recommended entry point for the third-party-control build track. In the normal flow, the user invokes /generate-ppmplugin and it drives the five stage skills (/generate-ppmplugin-manifest, /build-android-binary, /build-ios-binary, /assemble-ppmplugin, /audit-ppmplugin) in order. Advanced users may invoke a stage directly to rerun or debug only that stage. Inspect the repo, pick the right target set, run manifest → build skill(s) → assemble → audit in sequence, and produce a verified .ppmplugin on disk (or a clear stop with the failing stage).

Read shared/ppmplugin-format.md §1 — the bundle layout this orchestrator produces.

What this skill does NOT do

• Does not author the manifest, build the DEX, build the framework, zip the bundle, or run the audit itself — those are the stage skills. This skill invokes them in the right order, with the right inputs, and gates between them.
• Does not skip any stage's confirmations / mismatch gates / replace-existing prompts — those still surface to the user. The orchestrator just removes the "which stage next?" decision so the user never has to invoke a stage directly.
• Does not upload to Dataverse or wire into a canvas app (Stage 3 — deferred).
• Does not edit source code under src/, ios/, android/ — every stage builds from a staged copy. The repo is read-only from the build's perspective.

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Step 1 — Read shared docs + prereq summary

1. Read shared/shared-instructions.md and shared/ppmplugin-format.md.
2. Confirm the working directory is a third-party-control repo: a package.json (dev-only <kebab>-control name — not a published @powerapps/extension-* scope; this track ships a binary, not an npm package) and either android/ or ios/ (or both). If missing, STOP with NEEDS_CONTEXT: not a third-party-control-ready repo — missing <list> and point at shared/repo-layout.md.
3. Print the orchestrator prereq block (sub-skills each re-run their own prereq check when invoked — this is the summary the user sees up front so they know what's required end-to-end):

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 Prereqs — /generate-ppmplugin (end-to-end)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 /generate-ppmplugin-manifest  — no toolchain (pure read + validate + write)
 /build-android-binary         — JDK 17, Android SDK Build-Tools 35 (d8), Gradle
 /build-ios-binary             — Xcode 16+ (26.2+ recommended; CocoaPods optional — header-only path)  (Mac-only)
 /assemble-ppmplugin           — jar (JDK)
 /audit-ppmplugin              — jar (JDK); dexdump or strings (DEX scan)

Each stage will surface its own prereq failure when reached (don't pre-fail the orchestrator on a missing tool the user may have on a different machine).

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Step 2 — Detect available targets

Look at the repo to see which native platforms could actually build. Detection is structural, not aspirational — the user can't ship a platform whose source doesn't exist.

| Target | Detection signal | |---|---| | Android | android/build.gradle exists AND android/src/main/java/**/*.kt contains a ReactContextBaseJavaModule subclass | | iOS | ios/RCT*Module.h declaring <RCTBridgeModule> AND a .m with + (NSString *)moduleName (NOT RCT_EXPORT_MODULE) (podspec optional — only declares extra iOS system frameworks; /build-ios-binary builds from the .h/.m source + the react-native devDep headers, not the podspec) |

Print a visible ✓/✗ block:

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 Targets available in this repo
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 🟢 ✓ Android — android/build.gradle + PenInputModule.kt found
 🟢 ✓ iOS     — ios/RCTPenInputModule.h (+ .m with +moduleName) found

(If a signal is present but malformed — e.g. android/ exists but no Kotlin module — list it as ✗ with the specific gap. /generate-ppmplugin-manifest will run the deeper structure preflight; this orchestrator just sees if there's enough to consider the platform a viable target.)

If neither target is viable → STOP with NEEDS_CONTEXT: no native target available — repo has neither a buildable android/ nor ios/ module. The .ppmplugin format requires at least one native entrypoint; a manifest-only bundle is not shippable.

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Step 3 — Recommend + confirm the target set

Use the detection from Step 2 to pre-mark the recommended option, then confirm with AskUserQuestion:

• Both available → recommend Both. Reasoning: the whole pipeline runs in one shot; the user gets a bundle that works on every mobile platform.
• Android only available → recommend Android-only. No iOS source to build.
• iOS only available → recommend iOS-only. No Android source to build.

Question: Which target(s) should this .ppmplugin ship?
- Both (Recommended)           — runs /build-android-binary AND /build-ios-binary
- Android only                  — skips iOS even though the source is here
- iOS only                      — skips Android even though the source is here

Only show options whose target is viable. If only Android is viable, do not offer "Both" or "iOS only" — just confirm "Android-only" (one option is still worth confirming so the user can cancel).

On Mac-only constraint: if the user picks Both or iOS-only on a non-Mac, surface a one-line warning (/build-ios-binary is Mac-only and will halt the orchestrator when reached). Offer to fall back to Android-only or stop.

Record the chosen target set; it's the contract every downstream sub-skill sees.

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Step 4 — Run the stages in sequence (with gates)

Invoke each stage via the Skill tool. After each step, check its result; on DONE continue, on BLOCKED / NEEDS_CONTEXT halt the orchestrator with a clear handoff. Do not try to auto-recover — a failed stage is a signal the user needs to look.

4.1 — /generate-ppmplugin-manifest

Invoke Skill: generate-ppmplugin-manifest. On the normal flow the committed ./manifest.json already exists (authored by /generate-native-extension at scaffold time), so the sub-skill validates it, reconciles its entrypoints to the chosen target, and writes the staged build copy ppmplugin/staging/manifest.json — it does not re-author the contract. (If the repo has no ./manifest.json — a hand-authored module — the sub-skill falls back to authoring it from source.) It runs its own structure preflight, asks the target via AskUserQuestion (default to the orchestrator's choice from Step 3 — recorded in .extension-state.md so the sub-skill doesn't re-prompt unnecessarily), and returns DONE with the staged manifest path.

Re-run safety. If a staged manifest already exists from a prior run, the sub-skill's re-run mode (Step 1.5 in its SKILL.md) handles update / keep-as-is; that's not the orchestrator's concern.

4.2 — Build skill(s) in parallel where possible

The Android and iOS builds are independent — they touch different staging directories (ppmplugin/staging/android-build/ vs …/ios-build/) and produce different outputs. Run them concurrently when both are selected:

| Target set | Sub-skills invoked | |---|---| | Android-only | Skill: build-android-binary | | iOS-only | Skill: build-ios-binary | | Both | both, in a single turn (parallel Skill tool calls) |

Each build skill returns DONE (with the staged binary path) or BLOCKED (prereq / build failure). On a Both target, if one build fails and the other succeeds, ask via AskUserQuestion:

"/build-<platform> failed; /build-<other> succeeded. How do you want to proceed?"

• Fix and re-run the failing build — stop the orchestrator; the user investigates the failure
• Ship <other>-only — drop the failing platform from the target set, continue to assemble
• Stop

If both fail → STOP with BLOCKED: no platform built — see sub-skill output above.

4.3 — /assemble-ppmplugin

Invoke Skill: assemble-ppmplugin. The stage reconciles the manifest's native entrypoints against the staged binaries, re-validates, zips, and verifies. It returns DONE with the .ppmplugin path.

If the user dropped a platform in Step 4.2 (Ship <other>-only), the stage's own reconcile gate will offer to remove the missing entrypoint from manifest.json — accept that, since the orchestrator already made that decision upstream. Pass through without re-prompting if the underlying tooling allows.

4.4 — /audit-ppmplugin (final verification gate)

Invoke Skill: audit-ppmplugin on the .ppmplugin that /assemble-ppmplugin just produced (pass the bundle path). This is the gate that turns "well-formed zip" into "will actually load on device": it re-runs the validator rules against the built artifact, scans the DEX for SDK-era leakage (INativeExtension*, sendAsync, HermesBytecodeLoader, …), checks manifest↔bundle consistency and the source-to-receiver contract, and returns a verdict.

• DONE (0 CRITICAL) → the bundle is verified; continue to Step 5 and report READY TO UPLOAD. Surface any WARNINGs in the final report.
• BLOCKED (≥1 CRITICAL) → do NOT report success. Halt with the audit's CRITICAL findings and the owning-stage handoff (audit already routes each finding to /generate-ppmplugin-manifest or the build skill). The bundle exists on disk but is not upload-ready; the user fixes upstream and re-runs /generate-ppmplugin.

Because the orchestrator runs audit automatically, the user never invokes /audit-ppmplugin themselves on the happy path — it's the last internal stage.

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Step 5 — Report

Print the final deliverable as a visible block (informational, no question):

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 /generate-ppmplugin — DONE
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 Bundle: ppmplugin/pen-input.ppmplugin   (v0.1.4)   ✓ audit: READY TO UPLOAD
 Target: Both (Android DEX + iOS framework)
 Steps:  manifest ✓  build-android ✓  build-ios ✓  assemble ✓  audit ✓
 Next:   • deploy the dispatcher PCF → /publish-pcf-companion
         • upload this .ppmplugin via the wrap wizard + wire the PCF into a
           canvas app (Stage 3 — not yet a skill).

Then offer the actionable next step via AskUserQuestion (shared-instructions §9.1 — invoke via the Skill tool):

• Run /publish-pcf-companion (deploy the dispatcher PCF to a Power Platform env — needed before the control works in a canvas app)
• Run /debug-extension (debug/refine the control, then re-run /generate-ppmplugin)
• Stay — I'll upload the .ppmplugin manually (Stage 3 isn't a skill yet)

Return DONE with the bundle path. Only report this block when audit returned DONE — a bundle that failed audit is reported via the failure handoff below, never as success.

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Failure handoffs

The orchestrator's value is one entry point on the happy path. On a failure it should surface, not absorb. Each handoff names the failing stage and normally tells the user to re-run /generate-ppmplugin after fixing; direct stage invocation is reserved for a focused rerun or diagnostic:

| Failure | Handoff message | |---|---| | Manifest derivation blocked | BLOCKED at manifest stage — <reason>. Fix the flagged item, then re-run /generate-ppmplugin. | | Android build failed | BLOCKED at android-build stage — <reason>. The manifest in ppmplugin/staging/manifest.json is preserved; re-run /generate-ppmplugin after fixing. | | iOS build failed (Mac-only) | BLOCKED at ios-build stage — <reason>. If you don't have Xcode here, re-run on a Mac or pick "Android-only" target. | | Assemble failed | BLOCKED at assemble stage — <reason>. The staged binaries are intact; re-run /generate-ppmplugin after fixing. | | Audit found CRITICAL | BLOCKED at audit stage — <N> CRITICAL finding(s). The .ppmplugin was built but is NOT upload-ready. <first finding + its routed fix>. Fix upstream, then re-run /generate-ppmplugin. |

Never report a partial or unverified .ppmplugin as success. A bundle missing a declared entrypoint, or carrying SDK-leakage in its DEX, will fail during upload or silently on device; surface the gap here instead.