Add folder anatomy (scripts/agent.py + references/api-reference.md) for 648 cybersecurity skills

Complete skill folder anatomy across all cybersecurity skills:
- scripts/agent.py: 80-150 line Python agents using real libraries (impacket,
  boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.)
- references/api-reference.md: real API documentation with method signatures
- LICENSE: MIT license for all skill folders

skills/exploiting-oauth-misconfiguration/references/api-reference.md

@@ -0,0 +1,59 @@
+# API Reference: OAuth Misconfiguration Assessment Agent
+
+## Dependencies
+
+| Library | Version | Purpose |
+|---------|---------|---------|
+| requests | >=2.28 | HTTP client for OAuth flow testing |
+
+## CLI Usage
+
+```bash
+python scripts/agent.py \
+  --url https://auth.example.com \
+  --client-id APP_CLIENT_ID \
+  --redirect-uri https://app.example.com/callback \
+  --output oauth_report.json
+```
+
+## Functions
+
+### `discover_oidc_config(base_url) -> dict`
+Fetches `/.well-known/openid-configuration` or `/.well-known/oauth-authorization-server`.
+
+### `test_redirect_uri_bypasses(auth_endpoint, client_id, legitimate_uri) -> list`
+Tests 10 redirect_uri manipulation techniques: subdomain hijack, path traversal, case variation, protocol downgrade, CRLF injection.
+
+### `test_state_parameter(auth_endpoint, client_id, redirect_uri) -> dict`
+Submits authorization request without `state` to check CSRF protection.
+
+### `test_pkce_requirement(auth_endpoint, client_id, redirect_uri) -> dict`
+Tests whether `code_challenge` parameter is required. Generates S256 challenge for comparison.
+
+### `test_code_reuse(token_endpoint, auth_code, client_id, client_secret, redirect_uri) -> dict`
+Exchanges an authorization code twice to check single-use enforcement.
+
+### `test_scope_escalation(auth_endpoint, client_id, redirect_uri) -> dict`
+Requests elevated scopes (`admin`, `write`, `delete`) to test scope validation.
+
+### `run_assessment(config, client_id, redirect_uri) -> dict`
+Orchestrates all tests and compiles findings.
+
+## OAuth Endpoints Tested
+
+| Endpoint | Source | Test |
+|----------|--------|------|
+| `authorization_endpoint` | OIDC config | Redirect URI, state, PKCE, scope |
+| `token_endpoint` | OIDC config | Code reuse, scope escalation |
+
+## Output Schema
+
+```json
+{
+  "oidc_config": {"authorization_endpoint": "...", "token_endpoint": "..."},
+  "redirect_uri_tests": [{"redirect_uri": "https://evil.com", "accepted": false}],
+  "state_parameter": {"csrf_risk": false},
+  "pkce": {"pkce_required": true},
+  "findings": []
+}
+```