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ClaudeWave
Skill493 repo starsupdated 25d ago

plugin-creator

Create and scaffold plugin directories for Codex with a required `.codex-plugin/plugin.json`, optional plugin folders/files, valid manifest defaults, and personal-marketplace entries by default. Use when Codex needs to create a new personal plugin, add optional plugin structure, generate or update marketplace entries for plugin ordering and availability metadata, or update an existing local plugin during development with the CLI-driven cachebuster and reinstall flow.

Install in Claude Code
Copy
git clone --depth 1 https://github.com/deonmenezes/mantishack /tmp/plugin-creator && cp -r /tmp/plugin-creator/codex-rs/skills/src/assets/samples/plugin-creator ~/.claude/skills/plugin-creator
Then start a new Claude Code session; the skill loads automatically.

SKILL.md

# Plugin Creator

## Quick Start

1. Run the scaffold script:

```bash
# Plugin names are normalized to lower-case hyphen-case and must be <= 64 chars.
# The generated folder and plugin.json name are always the same.
# Run from the skill root (the directory containing this `SKILL.md`).
# By default creates in `~/plugins/<plugin-name>`.
python3 scripts/create_basic_plugin.py <plugin-name>
```

2. Edit `<plugin-path>/.codex-plugin/plugin.json` when the request gives specific metadata.
   The scaffold starts with valid defaults and must not contain `[TODO: ...]` placeholders.

3. Generate or update the personal marketplace entry when the plugin should appear in Codex UI ordering:

```bash
# Personal marketplace entries default to `~/.agents/plugins/marketplace.json`.
python3 scripts/create_basic_plugin.py my-plugin --with-marketplace
```

Only specify `--marketplace-name <name>` when the default `personal` marketplace name is already
taken or installed and you need to seed a different new marketplace file:

```bash
python3 scripts/create_basic_plugin.py my-plugin \
  --with-marketplace \
  --marketplace-name team-local
```

Only use a repo/team marketplace when the user specifically asks for that destination:

```bash
python3 scripts/create_basic_plugin.py my-plugin \
  --path <repo-root>/plugins \
  --marketplace-path <repo-root>/.agents/plugins/marketplace.json \
  --with-marketplace
```

When the user specifies a marketplace path, make sure that marketplace is actually installed before
telling the user to reinstall from it. The default personal marketplace file at
`~/.agents/plugins/marketplace.json` is discovered implicitly, but other marketplace paths are not.
On Windows, use the equivalent path under the user profile.

4. Generate/adjust optional companion folders as needed:

```bash
python3 scripts/create_basic_plugin.py my-plugin \
  --path <parent-plugin-directory> \
  --marketplace-path <marketplace-json-path> \
  --with-skills --with-hooks --with-scripts --with-assets --with-mcp --with-apps --with-marketplace
```

`<parent-plugin-directory>` is the directory where the plugin folder `<plugin-name>` will be
created (for example `~/plugins`).

5. Before handing back a generated plugin, run:

```bash
python3 scripts/validate_plugin.py <plugin-path>
```

For updates to an existing local plugin during development, keep the scaffold flow as-is and use the
reference instead of hand-editing marketplace files:

```bash
python3 scripts/update_plugin_cachebuster.py <plugin-path>
```

Prefer the helper default cachebuster unless the user explicitly asks for a specific override.
See `references/installing-and-updating.md` for the expected cachebuster and reinstall flow while iterating on an existing local plugin.

## What this skill creates

- Default marketplace-backed scaffolds use the personal marketplace file at
  `~/.agents/plugins/marketplace.json`, with plugins generally being stored in
  `~/plugins/<plugin-name>/`.
- Creates plugin root at `/<parent-plugin-directory>/<plugin-name>/`.
- Always creates `/<parent-plugin-directory>/<plugin-name>/.codex-plugin/plugin.json`.
- Fills the manifest with the validated schema shape that the ingestion path accepts.
- Creates or updates `~/.agents/plugins/marketplace.json` when `--with-marketplace` is set.
  - If the marketplace file does not exist yet, seed a personal marketplace root before adding the first plugin entry.
- `<plugin-name>` is normalized using skill-creator naming rules:
  - `My Plugin` → `my-plugin`
  - `My--Plugin` → `my-plugin`
  - underscores, spaces, and punctuation are converted to `-`
  - result is lower-case hyphen-delimited with consecutive hyphens collapsed
- Supports optional creation of:
  - `skills/`
  - `hooks/`
  - `scripts/`
  - `assets/`
  - `.mcp.json`
  - `.app.json`

## Marketplace workflow

- Personal-marketplace creation defaults to `~/.agents/plugins/marketplace.json`. Here,
  "personal marketplace" means the marketplace whose file is at that path.
- Repo/team marketplace creation is opt-in through both `--path` and `--marketplace-path`, only
  when the user specifically requests it.
- `--marketplace-name` is an exception path. Use it only when the default `personal` marketplace
  name is already taken and you need to seed a different new marketplace file.
- Do not use `--marketplace-name` to rename an existing marketplace file in place. If the file
  already exists, its top-level `name` must already match.
- If the user specifies a different marketplace path, treat that marketplace as needing explicit installation via `codex plugin marketplace add`.
- Prefer `scripts/read_marketplace_name.py` when you need the marketplace name from any
  `marketplace.json` file. With no argument it reads the default personal marketplace; with an
  explicit path it works for repo/team marketplaces too.
- In either location, the generated source path remains `./plugins/<plugin-name>`.
- Marketplace root metadata supports top-level `name` plus optional `interface.displayName`.
- Treat plugin order in `plugins[]` as render order in Codex. Append new entries unless a user explicitly asks to reorder the list.
- `displayName` belongs inside the marketplace `interface` object, not individual `plugins[]` entries.
- Each generated marketplace entry must include all of:
  - `policy.installation`
  - `policy.authentication`
  - `category`
- Default new entries to:
  - `policy.installation: "AVAILABLE"`
  - `policy.authentication: "ON_INSTALL"`
- Override defaults only when the user explicitly specifies another allowed value.
- Allowed `policy.installation` values:
  - `NOT_AVAILABLE`
  - `AVAILABLE`
  - `INSTALLED_BY_DEFAULT`
- Allowed `policy.authentication` values:
  - `ON_INSTALL`
  - `ON_USE`
- Treat `policy.products` as an override. Omit it unless the user explicitly requests product gating.
- The generated plugin entry shape is:

```json
{
  "name": "plugin-name",
  "source": {
    "source": "local",
    "path": "./plugins/plugin
api-abuse-fuzzerSubagent

Use this agent when the target is a LIVE REST or GraphQL API you are authorized to test and the question is "can I tamper request bodies, headers, ids, and tokens to read or act on data that isn't mine?" — active, request-driven abuse of the API contract, not static code review. It drives REAL HTTP at the endpoints: BOLA/IDOR object-id enumeration (increment/swap/UUID-shuffle the id and diff the access decision), broken function-level authz (replay an admin verb/path with a low-priv token), mass-assignment (inject role/is_admin/is_verified/owner_id into the JSON body), excessive-data-exposure (the response over-returns fields the UI never shows), GraphQL introspection + alias/batch amplification + nested-query DoS, content-type and HTTP-verb tampering (POST→PUT/PATCH/DELETE, application/json→text/plain→x-www-form-urlencoded), JWT/session/token swap across two users, and rate-limit / idempotency-key bypass. It proves every finding with a behavioral oracle — a status/length/timing/field-set diff between the authorized baseline and the tampered request — never a guess. Prefer this agent over a code reader when you hold a base URL or a schema and want to mutate live traffic methodically.\n\n<example>\nContext: The user has a running API with numeric resource ids and two test accounts.\nuser: "Here's our staging API at https://api.staging.acme.test and tokens for user A and user B — can user A read user B's orders?"\nassistant: "That's textbook BOLA: same endpoint, swap the object id (or the bearer token) and diff the access decision. I'll use the Task tool to launch the api-abuse-fuzzer agent to enumerate /orders/{id} with A's token against B's ids and prove the cross-tenant read with a status + ownership-field oracle."\n<agent_launch>\nDelegating to api-abuse-fuzzer: a live authorized API + two tokens + object-id enumeration is its core BOLA/IDOR mission.\n</agent_launch>\n</example>\n\n<example>\nContext: The user exposes a GraphQL endpoint and isn't sure introspection or query batching is locked down.\nuser: "Our /graphql is behind auth but I want to know if a low-priv user can pull admin fields, brute force via aliases, or knock it over with a deep nested query."\nassistant: "GraphQL abuse surface: introspect the schema, alias-batch a login/lookup to bypass per-request rate limits, and send a bounded cyclic nested query as a timing oracle. I'll launch the api-abuse-fuzzer agent to tamper the operation and measure the depth/timing oracle."\n<agent_launch>\nDelegating to api-abuse-fuzzer for GraphQL introspection, alias/batch amplification, and nested-query DoS against the live endpoint.\n</agent_launch>\n</example>\n\nProactively suggest using this agent when: a live base URL + an OpenAPI/Swagger/GraphQL schema (or a captured request) is in hand and the target is authorized in-scope; endpoints take a resource identifier in the path/query/body (/users/{id}, ?account=, {"order_id": ...}) — BOLA/IDOR territory; the user holds 2+ accounts or tokens (low-priv + high-priv, tenant A + tenant B) to run an authorization differential; there are admin/privileged verbs (DELETE, PUT /admin/*, role-changing mutations) and you want to hit them as a non-admin; a write endpoint accepts a JSON object — test mass-assignment of role/is_admin/verified/balance/owner_id; a /graphql endpoint exists (introspection, alias/batch abuse, nested-query DoS, field-level authz); or the user mentions rate limiting, coupon/OTP brute force, idempotency keys, BOLA, BFLA, mass assignment, or "excessive data exposure".

assumption-pressure-testSubagent

Use this agent when a codebase, PR, or service needs its IMPLICIT TRUST ASSUMPTIONS enumerated and attacked — every place the code silently trusts a header, an "internal-only" route, an "already-validated-upstream" input, an ID that "belongs to the caller," or a value that "can't be null/negative." It specializes in confused-deputy (CWE-441), mass-assignment (CWE-915), input-validation gaps (CWE-20), and second-order/stored injection (CWE-89/CWE-79). This is the agent for trust-boundary audits, multi-service request paths, ORM/serializer review, and proxy/gateway/header-forwarding code.\n\n<example>\nContext: User has a multi-service backend where an edge proxy forwards auth context downstream.\nuser: "Our gateway sets X-User-Id from the JWT and the internal services read it to authorize. Can you check this?"\nassistant: "This is a classic confused-deputy / trust-boundary surface — the downstream services trust a header they can't verify. I'll use the Task tool to launch the assumption-pressure-test agent to enumerate every internal endpoint that reads X-User-Id and prove whether an attacker can reach it directly and forge it."\n<agent_launch>\nDelegating to assumption-pressure-test: the request hinges on an implicit 'this header is trusted because the gateway set it' assumption that must be attacked.\n</agent_launch>\n</example>\n\n<example>\nContext: User just merged an ORM update endpoint.\nuser: "Here's the new profile update handler: User.objects.filter(id=request.user.id).update(**request.data)"\nassistant: "That `**request.data` spread is a mass-assignment sink — it trusts that the request body only contains the fields you intended. I'll launch the assumption-pressure-test agent to map which model columns (is_admin, balance, role) become attacker-writable and confirm reachability."\n<agent_launch>\nDelegating to assumption-pressure-test for the CWE-915 mass-assignment and the implicit 'the body only has safe fields' assumption.\n</agent_launch>\n</example>\n\nProactively suggest using this agent when:\n- Code reads request headers (X-Forwarded-For, X-User-Id, X-Real-IP, X-Internal-*, Host) for trust or authorization decisions\n- A serializer/ORM uses bulk binding: `**req.body`, `Object.assign`, `ModelMapper`, `BeanUtils.copyProperties`, `update_attributes`, `params.permit!`\n- Comments or names assert trust: "internal only", "already validated", "trusted", "comes from gateway", "sanitized upstream"\n- Data is stored then later concatenated into SQL/HTML/shell (second-order injection)\n- An endpoint takes an `id`/`uuid`/`account`/`order` param that maps to a resource (IDOR / object ownership)

coverage-analyzerSubagent

Generate gcov coverage data for a code repository.

crash-analysis-agentSubagent

Analyze security bugs from any C/C++ project with full root-cause tracing

crash-analyzerSubagent

Analyze crashes using rr recordings, function traces, and coverage data to produce root-cause analyses.

crash-analysis-checkerSubagent

Carefully analyze root cause analysis reports for crashes to make sure they are correct

exploitability-validator-agentSubagent

Multi-stage pipeline to validate vulnerability findings are real, reachable, and exploitable

federated-identity-breakerSubagent

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