# sct_add_coverage

Generate contract test coverage (Pro feature)

Agent View of the PolicyLayer registry record for `sct_add_coverage`. HTML page: https://policylayer.com/tools/barnburner121-plugin-hub-mcp/sct-add-coverage

## Facts

- Tool: `sct_add_coverage`
- Server: Plugin Hub (`@barnburner121/plugin-hub-mcp`) — https://policylayer.com/tools/barnburner121-plugin-hub-mcp.md
- Install: `npx -y @barnburner121/plugin-hub-mcp`
- Homepage: git+https://github.com/barnburner121/claude-plugin-marketplace.git
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "sct_add_coverage",
    "arguments": {}
  }
}
```

## Why sct_add_coverage is rated Medium

An AI agent can call sct_add_coverage faster than any human can review: one bad instruction and it creates or modifies resources in Plugin Hub by the hundred, each call as confident as the last.

## Use case

AI agents use sct_add_coverage to create or update resources in Plugin Hub, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Plugin Hub environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Plugin Hub:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "sct_add_coverage": {
      "limits": [
        {
          "counter": "sct_add_coverage_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Plugin Hub (615)

- `seed_reset_script` — Destructive — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/seed-reset-script.md
- `container_optimize_image` — Execute — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/container-optimize-image.md
- `cost_optimize_docker` — Execute — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/cost-optimize-docker.md
- `json_transform_pipeline` — Execute — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/json-transform-pipeline.md
- `notify_build_pipeline` — Execute — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/notify-build-pipeline.md
- `pino_transport_pipeline` — Execute — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/pino-transport-pipeline.md
- `pipeline_debug` — Execute — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/pipeline-debug.md
- `regex_build_pattern` — Execute — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/regex-build-pattern.md
- `seo_audit_performance` — Execute — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/seo-audit-performance.md
- `a11y_scan_html` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/a11y-scan-html.md
- `anon_detect_pii` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/anon-detect-pii.md
- `api_contract_test` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/api-contract-test.md
- `apidep_scan` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/apidep-scan.md
- `arch_analyze_structure` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/arch-analyze-structure.md
- `audit_query_builder` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/audit-query-builder.md
- `bundle_analyze_size` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/bundle-analyze-size.md
- `bundle_find_heavy_deps` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/bundle-find-heavy-deps.md
- `complexity_analyze` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/complexity-analyze.md
- `container_scan_compose` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/container-scan-compose.md
- `cors_analyze_config` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/cors-analyze-config.md
- `cost_analyze_infra` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/cost-analyze-infra.md
- `cost_optimize_database` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/cost-optimize-database.md
- `coverage_analyze_gaps` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/coverage-analyze-gaps.md
- `css_find_duplicates` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/css-find-duplicates.md
- `css_find_unused` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/css-find-unused.md
- `data_generate_edge_cases` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/data-generate-edge-cases.md
- `data_generate_from_schema` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/data-generate-from-schema.md
- `data_generate_realistic` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/data-generate-realistic.md
- `ddb_optimize_queries` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/ddb-optimize-queries.md
- `dead_find_unused_exports` — Read — https://policylayer.com/tools/barnburner121-plugin-hub-mcp/dead-find-unused-exports.md
- …and 585 more: https://policylayer.com/tools/barnburner121-plugin-hub-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=barnburner121-plugin-hub-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/barnburner121-plugin-hub-mcp