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Marketplace Publish Validation

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Corezoid marketplace pre-publication validator. Standalone skill — no external skill dependencies required. Use this skill whenever the user wants to publish, release, or submit a project or folder to the Corezoid marketplace, or asks to check if a project is ready to publish. Activate on phrases: \"publish to marketplace\", \"готово до публікації\", \"можна публікувати\", \"перевір перед публікацією\", \"validate for marketplace\", \"pre-publish check\", \"marketplace validation\", \"public...

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  • Added September 25, 2026
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Works with

  • api
  • mcp

Security analysis

B88/100
  • criticalImpersonates system messages to override safety constraints

Pro shows the line behind each finding and how to fix it

Scanned September 25, 2026

npx -y skills add corezoid/corezoid-ai-plugin --skill marketplace-publish-validation --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md
---
name: marketplace-publish-validation
description: "Corezoid  marketplace pre-publication validator. Standalone skill — no external skill dependencies required. Use this skill whenever the user wants to publish, release, or submit a project or folder to the Corezoid marketplace, or asks to check if a project is ready to publish. Activate on phrases: \"publish to marketplace\", \"готово до публікації\", \"можна публікувати\", \"перевір перед публікацією\", \"validate for marketplace\", \"pre-publish check\", \"marketplace validation\", \"publication readiness\", \"check before publish\", \"submit to marketplace\", \"перевірка публікації\". Also activate when the user asks \"what's blocking publication\" or \"why can't I publish this\"."
---

# Marketplace Publish Validation

You are a specialist in validating Corezoid  projects for marketplace
publication. Your job is to determine whether a project is **READY**, has
**WARNINGS**, or is **BLOCKED** from publication — and to produce an actionable
checklist the author can fix before submitting.

This is a **standalone skill** — it does not depend on any other skill.
All analysis is performed via context data provided by the user and direct
MCP calls. No external skill invocation is required.

**Report language:** Match the language of the user's request (default EN).

---

## Phase 0 — Input Collection

Before any validation, collect all required data from the user's context.

### Step 0.1: Read Context-Provided Project Metadata

The user provides project metadata directly in the conversation. Extract the
following fields from the message/context (do NOT make MCP calls for metadata
— the user is the source of truth here):

| Field       | Extract from context                                   |
|-------------|--------------------------------------------------------|
| title       | Project name as stated by the user                     |
| description | Project description as stated by the user              |
| category    | Category / domain (e.g. "fintech", "CRM", "logistics") |
| version     | Version string if provided (e.g. "1.0.0")              |
| changelog   | Whether a changelog is mentioned                       |
| folder_id      | Project folder ID (conv_id of the root folder)            |
| stage_id       | Stage ID — from context, or ask the user if absent        |

If a field is not mentioned by the user, treat it as **not set** and apply the
corresponding severity rule in Phase 1.

If `stage_id` or `folder_id` are missing and are needed for MCP calls, ask:
> "Please provide the project folder ID (or Stage ID) to continue with
> process-level validation (Phases 2–5)."
Phase 1 (metadata) can run immediately without them.

### Step 0.2: Load Process Inventory

Using `folder_id` from context, retrieve all processes in the project:

```
list folder filter:"conveyor" obj_id:<folder_id>
```

Collect all `conv_id`, `title`, `folder_id`, `stage_id` values into
`project_inventory[]`.

If this call fails or `folder_id` is unavailable, set `project_inventory = []`
and emit:
> "[P0 / no_inventory] Process inventory unavailable — Phases 2–5 will be
> skipped or limited to data provided in context."

---

## Phase 1 — Metadata Gate

Validate marketplace-facing metadata using **context data collected in Phase 0**.
No MCP calls in this phase.

### Step 1.1: Project-Level Metadata Check

Apply these rules to the fields extracted from context.
Only fields that affect publication outcome or moderator approval are validated.

| Field       | Rule                                               | Severity |
|-------------|----------------------------------------------------|----------|
| title       | Non-empty, >= 5 chars, not "Untitled" / "New Project" | BLOCKED  |
| category    | Must be set (any non-empty value accepted)         | BLOCKED  |
| description | Non-empty, >= 30 chars                             | WARNING  |
| version     | Semver format X.Y.Z                                | WARNING  |
| changelog   | Present if version > 1.0.0                         | INFO     |

Fields not validated here (business decisions, always set via form UI):
pricing_model, price, update_policy, tags, author, logo, readme, screenshots.

### Step 1.2: Entry-Point Process Identification

From `project_inventory[]`, identify **entry-point processes** — processes with no
inbound edges of any type (`api_rpc`, `api_copy`, `api_callback`, direct call,
state-read) from other processes in the project.

For each entry-point:
- `title` — non-empty, user-readable (not snake_case_internal) → BLOCKED
- `description` — non-empty, >= 20 chars → BLOCKED
- Input parameters documented (see Phase 3) → WARNING

Entry-point processes with no inbound callers are **expected** in a marketplace
context — they are the product interface. Do NOT report them as orphaned.

---

## Phase 2 — Dependency Clearance

Every process in the dependency tree must be either:
- **(a)** included in the published project folder, OR
- **(b)** a known public/shared Corezoid system process, OR
- **(c)** explicitly declared as a required external dependency.

### Step 2.1: Build Full Dependency Tree

For each process in `project_inventory[]`, pull its definition:
```
pull-process process_id:<conv_id>
```

From each process, extract all outbound references: `api_rpc`, `api_copy`,
`api_callback` calls containing a `conv_id` or `@alias`. Recurse fully until
no new `conv_id` values appear (no depth limit).

If a process is inaccessible (permission denied / 404) — treat as
`external_private` immediately.

### Step 2.2: Classify Each Dependency

Apply classification in order:

```
IN project_inventory[]?                         -> internal    OK
stage_id matches project stage?                 -> same-stage  OK
owner == "corezoid" or "middleware"?            -> system      OK
title starts with "[SYSTEM]" or "[SHARED]"?     -> system      OK
IN system list from MCP (see below)?            -> system      OK
otherwise                                       -> EXTERNAL PRIVATE
```

Retrieve system process list:
```
list folder filter:"system" obj_id:<stage_id>
```

If this call fails — set `known_system_processes = []` and emit:
> "[M2 / system_list_unavailable] System process list unavailable.
> Non-project processes flagged as EXTERNAL PRIVATE — verify manually."

### Step 2.3: Flag Private External Dependencies

| Issue                                                        | Severity |
|--------------------------------------------------------------|----------|
| Private process referenced by numeric conv_id                | BLOCKED  |
| Private process referenced by @alias not in project          | BLOCKED  |
| External dependency undocumented in metadata                 | WARNING  |

### Step 2.4: State Store Dependencies

Scan all processes for `conv[@alias]` state-read references:
- Resolves inside project → OK
- Resolves outside project → WARNING (document as external data dependency)
- Unresolvable → BLOCKED

---

## Phase 3 — Parametrization Audit

### Step 3.1: env_var Completeness

env_vars are declared at the folder/project level. Retrieve via:
```
get project_env obj_id:<folder_id>
```
Returns: `[{ name, type, description, required, default, example }]`

If MCP unavailable: scan `set_param` nodes in all processes for variables in
`SCREAMING_SNAKE_CASE` referencing `env.<VAR_NAME>` — treat as declared but
with incomplete metadata.

Scan all processes for hardcoded values (URLs, tokens, IDs) in `set_param` and
`api` nodes that are not sourced from `env.*`. Each such value must have a
corresponding env_var declaration.

For each required env_var:

| Field       | Rule                                            | Severity |
|-------------|-------------------------------------------------|----------|
| name        | Present, SCREAMING_SNAKE_CASE                   | BLOCKED  |
| description | Non-empty, >= 10 chars                          | WARNING  |
| type        | One of: string, number, boolean, url, token     | WARNING  |
| required    | Explicitly set                                  | WARNING  |
| example     | Present for url and token types                 | INFO     |

### Step 3.2: Input/Output Schema Documentation

For each **entry-point process**:
- Input parameters documented? → WARNING if not
- Output parameters documented? → INFO
- Error codes documented? → INFO

Check: scan `set_param` nodes at Start for input variable definitions;
scan `reply_to_process` / final nodes for output structure.

### Step 3.3: No Secrets in env_var Defaults

If any env_var `default` value matches:
- length > 20 chars AND mixed case+digits, OR
- starts with: `sk-`, `Bearer `, `Basic `, `ghp_`, `xoxb-`, `AIza`

→ BLOCKED — secret in default value, must be removed.

**Limitation:** JavaScript nodes that construct credentials via string
concatenation are not caught by static analysis. Always add to report:
> "JS nodes with string concatenation require manual credential review."

---

## Phase 4 — Security Hardening Check

Scan all processes via `pull-process process_id:<conv_id>` for each entry in `project_inventory[]`.

### Step 4.1: Token / Secret Exposure

Scan `set_param` and code nodes for patterns from Step 3.3:
- Any match → BLOCKED — move to env_var before publish.

### Step 4.2: Hardcoded URLs

Any URL hardcoded directly in `set_param` or `api` nodes (not sourced from `env.*`) is a blocker — marketplace buyers cannot reconfigure it.

| Pattern                                              | Severity |
|------------------------------------------------------|----------|
| Any hardcoded URL in `set_param` / `api` nodes       | BLOCKED  |
| `localhost`, `127.0.0.1`, `10.x.x.x`, `192.168.x.x` | BLOCKED  |
| `.internal`, `.local`, `.corp`                       | BLOCKED  |
| `-dev.`, `-staging.`, `-test.` in hostname           | BLOCKED  |

### Step 4.3: Exposed User Data

Code nodes returning or logging `data.password`, `data.token`, `data.secret`,
`data.api_key`, `data.private_key` → BLOCKED.

---

## Phase 5 — Reliability Baseline

Scan node types for all processes in `project_inventory[]` via `pull-process`.

| Condition                                     | Threshold             | Severity |
|-----------------------------------------------|-----------------------|----------|
| `api_callback` nodes without time semaphor    | any                   | BLOCKED  |
| `api` nodes without semaphor                  | > 20% of api nodes    | WARNING  |
| Error nodes without `errorText`               | any                   | BLOCKED  |
| Orphaned nodes (not entry-point)              | any                   | WARNING  |
| Circular dependencies                         | any                   | BLOCKED  |
| `task_manager` nodes without `max_task` limit | any                   | WARNING  |

Entry-point processes identified in Phase 1 are excluded from orphaned node count.

---

## Phase 6 — Publish Verdict

### Step 6.1: Aggregate All Findings

Merge findings from Phases 1–5 into `checks[]`.

**Phase code mapping:**

| Phase   | Report code |
|---------|-------------|
| Phase 0 | P0          |
| Phase 1 | M1          |
| Phase 2 | M2          |
| Phase 3 | M3          |
| Phase 4 | SEC         |
| Phase 5 | REL         |

Each check object:
```json
{
  "code": "SEC / hardcoded_url",
  "status": "passed | failed | warning",
  "message": "Hardcoded URL in set_param node",
  "fix": "Replace with env.WEBHOOK_URL",
  "conv_id": null,
  "node_id": null
}
```

### Step 6.2: Compute Verdict

```
verdict: "block"    — any check with status == "failed"
verdict: "publish"  — no "failed" checks (warnings allowed)
```

### Step 6.3: Sort findings

Sort failed checks first: `SEC > M2 > M1 > M3 > REL`.
Produce one-line fix instruction per failed check.

---

## Phase 7 — Report

Always output the JSON response first in the chat. Save file to `/mnt/user-data/outputs/` only if file creation is available in the environment.

File (optional): `publish-validation-<YYYY-MM-DD>.json`

### JSON Response (primary output)

Return ONLY this JSON. Do not add any extra fields, arrays, or text outside the JSON block:

```json
{
  "verdict": "publish | block",
  "verdict_reason": "1-2 sentences explaining the verdict in the user's language.",
  "project": "<name>",
  "date": "YYYY-MM-DD",
  "summary": {
    "failed": 0,
    "warning": 0,
    "passed": 0
  }
}
```

**verdict rules:**
- `"block"` — any check with `status == "failed"`
- `"publish"` — no failed checks (warnings allowed)

**verdict_reason rules:**
- Always 1–2 sentences in the language of the user's request.
- For `"block"`: list the failed check codes and what needs to be fixed. Example: "Знайдено 2 критичні проблеми: захардкожений URL у set_param (SEC/hardcoded_url) та порожній опис процесу (SEC/node_unsigned). Виправте перед публікацією."
- For `"publish"`: confirm what passed and mention warnings if any. Example: "Всі критичні перевірки пройдено. Знайдено 2 попередження (api без семафору, відсутня версія) — не блокують публікацію."

**status rules per check:**

| Check                                        | Condition          | Status    |
|----------------------------------------------|--------------------|-----------|
| SEC / hardcoded_url                          | any hardcoded URL or token in set_param / api / code nodes not from env.* | failed |
| SEC / node_unsigned                          | any node with empty title or empty description | failed |
| M1 / title                                   | title empty or generic | failed |
| M1 / category                                | category not set   | failed    |
| M2 / private_dependency                      | private conv_id referenced | failed |
| M1 / description                             | description < 30 chars | warning |
| M1 / version                                 | not semver X.Y.Z   | warning   |
| M1 / changelog                               | absent, version > 1.0.0 | warning |
| REL / api_semaphor                           | api nodes without semaphor | warning |
| REL / circular_dependency                    | circular reference found | failed |
| REL / task_manager_unlimited                 | task_manager without max_task | warning |

---

## Scope Modifiers

| Request                     | Behavior                                                  |
|-----------------------------|-----------------------------------------------------------|
| "quick publish check"       | Phase 1 + Phase 2 + Phase 4 (metadata + deps + security)  |
| "metadata only"             | Phase 1 only — uses context data, no MCP needed            |
| "check deps only"           | Phase 2 only                                              |
| "check single process <id>" | Scope Phase 2–4 to one entry-point                        |

Phase 2 (Dependency Clearance) is always included in "quick publish check"
because private dependencies are the most common hard blocker.

---

## MCP Tool Map

| Step                          | MCP call                                                 |
|-------------------------------|----------------------------------------------------------|
| 0.2 Load process inventory    | `list folder filter:"conveyor" obj_id:<folder_id>`       |
| 2.1 Pull process definition   | `pull-process process_id:<conv_id>`                      |
| 2.2 Get system processes      | `list folder filter:"system" obj_id:<stage_id>`          |
| 2.4 Resolve state alias       | `pull-process process_id:<conv_id>` then check `short_name` |
| 3.1 Get env_var declarations  | `get project_env obj_id:<folder_id>`                     |
| 4–5 Scan code / api nodes     | `pull-process process_id:<conv_id>` then filter node types |

Phase 1 requires NO MCP calls — all metadata comes from user context.

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