End-to-end IoT product development orchestration for TuyaOpen projects. Guides from requirements gathering → Tuya Platform product/DP creation → complete embedded firmware generation. State-machine: detects project state and picks up from wherever development currently stands.
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SKILL.md
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name
smart-product-dev
description
End-to-end IoT product development orchestration for TuyaOpen projects. Guides from requirements gathering → Tuya Platform product/DP creation → complete embedded firmware generation. State-machine: detects project state and picks up from wherever development currently stands.
when_to_use
Use when the developer says "I want to make a [device]", "帮我做一个XX", "what's next?", "下一步该干什么", or describes product features and expects end-to-end guidance. Do NOT use for pure platform ops (→ tuya-iot-platform), pure build/debug (→ tuyaopen/dev-loop), or project creation only (→ tuyaopen/project-config).
"Please open this project in TuyaOpen IDE first — the IDE writes the CLI wrapper on project open."
Platform auth
tuya-devplat-cli auth status --format json → exit 0 AND authenticated: true
"Please sign in via TuyaOpen IDE → Developer Platform sidebar." Never run auth login. Timeout >10 s → report network issue.
SDK env
$OPEN_SDK_ROOT set and dir contains export.sh/export.bat/export.ps1
SDK present but not activated → delegate to tuyaopen/env-setup. SDK absent → "Please clone the SDK via TuyaOpen IDE → Library."
Context Reading (Every Entry)
Read ALL files fresh on every entry including re-entry. Never carry state from prior conversation.
File
What to extract
tuyaopen.project.ini
[product] pid, [platform] target
.tuyaopen/project.json
ai.intent, ai.expectedDps, ai.productCategory
.tuyaopen/platform/product-<pid>.json
full snapshot (apply unwrap), fetchError
.tuyaopen/ide/platform.json
peripherals, connectivity, pinout, flashAndDebug
.tuyaopen/ide/board.json
peripheralPatterns
.tuyaopen/ide/demo.json
cloud.pid.* — PID firmware location (IDE-owned; do not hand-edit firmware PID, see Step 6). Absent → not created from a demo
.tuyaopen/architecture.json
surfaces.embedded.peripherals
source/embedded/src/tuya_app_main.c
#include lines (text grep only)
source/embedded/src/ listing
all .c filenames present
If .tuyaopen/ does not exist → state is no-project.
State Detection
Evaluate top-to-bottom. First match wins.
no-project .tuyaopen/ does not exist
bare [product] pid is empty or missing
has-pid pid non-empty AND any of:
· product-<pid>.json missing
· product-<pid>.json has fetchError
· selectedDps (after unwrap) count === 0
has-dps pid non-empty
AND product-<pid>.json exists, no fetchError
AND selectedDps count ≥ 1
AND architecture.json surfaces.embedded.peripherals is empty/absent
AND source/embedded/src/ has only scaffold files*
in-progress pid non-empty
AND product-<pid>.json exists, no fetchError
AND selectedDps count ≥ 1
AND at least one of:
· architecture.json surfaces.embedded.peripherals has any entry ← authoritative
· source/embedded/src/ has non-scaffold .c files
*Scaffold files: at time of writing, only tuya_app_main.c. When architecture.json.surfaces.embedded.peripherals has entries, that is the definitive in-progress signal regardless of file listing. Do not rely on header scanning alone — the scaffold may include umbrella headers (e.g., tal_api.h) that reference hardware headers transitively.
State: no-project
Delegate to tuyaopen/project-config to create the project. After creation re-run from Context Reading.
Ask developer to describe the product freely. Extract:
Features (what the device does)
Product category: ask explicitly — dj (灯具), kt (空调), qt (通用), etc. Affects DP numbering and standard templates.
Communication type: Infer from [platform] target + platform.json.connectivity. Do not ask.
Supported: Wi-Fi+BT, Wi-Fi-only, Linux/Raspberry Pi
Unsupported: pure Bluetooth, Zigbee, Z-Wave → fail-fast, explain why
Wi-Fi-only path: If platform.json.connectivity.ble.enabled === false — still run Steps 2 and 3. After Step 3, tell developer: "Your board is Wi-Fi-only. tuya-iot-platform only supports Wi-Fi+BT product creation. Please create the product manually on platform.tuya.com and give me the PID." Then jump to Step 6 (skip Steps 4–5 — product was created manually).
Do not ask about GPIO/hardware here — that belongs in has-dps.
Step 2 — DP Mapping
Map features to DP codes + types. For known categories, use standard codes. Present for confirmation:
I'll create these DPs:
switch_led (bool) — on/off
bright_value (integer, 10–1000) — brightness
temp_value (integer, 0–1000) — color temperature
Does this look right? Any additions or changes?
Wait for explicit confirmation before proceeding.
Step 3 — Persist Intent (always, including Wi-Fi-only path)
Merge/update .tuyaopen/project.json. Preserve all existing top-level fields and all ai.* fields not listed below. Only set:
Delegate to tuya-iot-platform → ops/product.md. Show dry-run preview + riskLevel. Require explicit developer approval before --confirm. On failure: do not write PID to ini, stop.
Step 5 — Create DPs
Delegate to tuya-iot-platform → ops/manage-dp.md. Dry-run → developer approves → confirm. On partial failure: report which DPs failed, stop.
Step 6 — Bind PID
Edit tuyaopen.project.ini → [product] pid = <pid>. This is the only file you write for binding.
Do NOT hand-edit the firmware PID (the Kconfig CONFIG_TUYA_PRODUCT_ID in source/embedded/app_default.config / config/*.config, or a TUYA_PRODUCT_ID macro). The IDE owns the firmware rewrite: it reads the demo's PID-location spec from .tuyaopen/ide/demo.json (cloud.pid.via / kconfigKey / macro / file) and writes the PID to the exact location that demo declares — which is often NOT the default symbol. Editing it yourself will likely target the wrong key/macro/file and bind the wrong PID.
Binding is a two-step handshake and is NOT complete after you write the ini. You write [product] pid; the IDE writes the firmware. Until the developer clicks Update (更新), the firmware still holds the previous PID (or the demo's placeholder) — the new PID is NOT in the build yet. You MUST NOT end a bind turn without the Update call-to-action below; it is the required final message of every bind, even when you also did other work (DP creation, snapshots, cleanup).
Required closing message: "I've set the PID <pid> in tuyaopen.project.ini. ⚠️ The firmware still has the old PID — to land the new one, open TuyaOpen IDE → Project Details and click the Update (更新) button. Tell me when done." (On the Cloud IoT info row the same action is labelled Refresh (刷新).)
When developer says done: re-run full state detection from Context Reading. Trust the file, not the claim. If still has-pid, tell developer and wait again.
Do NOT invent IDE buttons or pages. The only button the developer ever clicks for product data is Update (更新) (a.k.a. Refresh (刷新) on the Cloud IoT row). There is no "Sync" button for product or panel data. The panel snapshot (panel-<pid>.json) is auto-managed by the IDE — it syncs on its own when Project Details opens and on bind; never ask the developer to "Sync" it.
Rollback: If writing ini fails after product was created: "Product created, PID <pid>. Please add manually: [product] pid = <pid> in tuyaopen.project.ini, then click Update (更新) in Project Details."
State: has-pid
Goal: Diagnose and fix missing/incomplete DPs.
Condition
Action
product-<pid>.json missing
"Please click Update (更新) in TuyaOpen IDE → Project Details (or Refresh (刷新) on the Cloud IoT row)." Re-run state detection after developer confirms. Trust the file.
fetchError in snapshot
Show error text. Ask developer to check credentials/network, then click Update (更新) again.
selectedDps count === 0, ai.expectedDps exists
Run DP creation (bare Step 5). Ask developer to click Update (更新). Re-run state detection.
selectedDps count === 0, no ai.expectedDps
Ask developer what DPs are needed. Write to project.json ai.expectedDps (merge/update, preserve other fields). Run DP creation. Ask developer to click Update (更新).
DP completeness (when selectedDps ≥ 1 and ai.expectedDps exists):
Codes in ai.expectedDps but not in selectedDps → add via tuya-iot-platform → ops/manage-dp.md (dry-run → approve → confirm)
Codes in selectedDps but not in ai.expectedDps → ask developer if intentional. If yes: add to ai.expectedDps (merge/update project.json)
After any fix: ask developer to click Update (更新) in Project Details, re-run state detection.
Entry point: tuya_app_main() in source/embedded/src/tuya_app_main.c.
Debug output: PR_DEBUG(fmt, ...).
Step 7 — Update architecture.json
Write new peripherals and modules to architecture.json surfaces.embedded. This is the authoritative in-progress signal. Write only after Step 6 completes.
Step 8 — Build
Delegate to tuyaopen/dev-loop. If build fails, diagnose and fix in place. If Kconfig is root cause, go to Step 5 and rebuild.
State: in-progress
Goal: Gap analysis → complete code.
Step 1 — Gap Analysis
Cross-reference source files, architecture.json, ai.expectedDps, and selectedDps:
DPs in ai.expectedDps with no handler in source → missing
Peripherals in architecture.json surfaces.embedded.peripherals not initialized in code → missing init
DPs in selectedDps not in ai.expectedDps → ask developer if they should be handled
Step 2 — Surface Gap
Reading existing code...
Handled: switch_led ✓
Missing: bright_value — no PWM init or handler
Missing: temp_value — no PWM handler
Completing now...
Step 3 — Complete Code
Run has-dps Step 3 hardware inquiry only for missing parts. Read architecture.json first — do not re-ask for already-wired peripherals.
After completing, update architecture.json (has-dps Step 7).
Step 4 — Build
Delegate to tuyaopen/dev-loop.
Reverse Transitions
Trigger
Action
DP found missing vs ai.expectedDps
→ has-pid (add DP), return to current state
Developer adds new feature
Update ai.expectedDps. → has-pid (add DP). Return to in-progress.
Build fails: missing Kconfig
→ has-dps Step 5
Developer wants different PID
Clear [product] pid from ini. Delete product-<old-pid>.json. Keep ai.*. → bare Step 3 (persist intent) then Step 6 (bind the new PID). Skip Steps 4–5 — the product already exists on the platform.
Change product category
Clear ai.productCategory + ai.expectedDps from project.json. → bare Step 1.
Always / Never
Always:
Show dry-run preview + riskLevel before any --confirm
Require explicit developer approval for every platform mutation
Read ai.intent / ai.expectedDps before re-asking requirements
Show available peripheral options before asking developer to choose pins
Re-read all context files on every entry
Trust snapshot files — not the developer's oral "done" confirmation
Apply dpSchema unwrap before any DP access
Never:
Run tuya-devplat-cli auth login
Invent a PID or DP code
Assume a GPIO pin without developer confirmation
Re-ask hardware questions already in architecture.json
