feat(skills): add promptfoo skill for LLM evaluation and red-teaming

Covers install, configuration, running evals, red-teaming, CI/CD
integration, and dataset generation. Pins to v0.121.17 with acquisition
notice (OpenAI, March 2026) and documented fallbacks (DeepEval, Arize Phoenix).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/kyberforge/skills/promptfoo/references/cli-reference.md

@@ -0,0 +1,148 @@
+---
+topic: cli-reference
+source_keys:
+  - context7-promptfoo-dev
+  - context7-promptfoo-github
+---
+
+## Invocation
+
+```bash
+promptfoo <command> [options]     # global install
+npx promptfoo@0.121.17 <command>    # one-off via npx
+```
+
+## Commands
+
+### `init`
+
+Scaffold a new project in the current directory.
+
+```bash
+promptfoo init
+promptfoo init --example openai-mcp
+```
+
+Creates `promptfooconfig.yaml` with example prompts, providers, and test cases.
+
+---
+
+### `eval` (most common)
+
+Run an evaluation.
+
+```bash
+promptfoo eval
+promptfoo eval -c path/to/promptfooconfig.yaml
+promptfoo eval --no-cache
+promptfoo eval --max-concurrency 2
+promptfoo eval --delay 3000
+promptfoo eval -o results.json
+```
+
+| Flag | Description |
+|---|---|
+| `-c <path>` | Config file path (default: `promptfooconfig.yaml`) |
+| `--no-cache` | Disable response cache; forces fresh LLM calls |
+| `--max-concurrency <n>` | Max parallel requests (default: provider-dependent) |
+| `--delay <ms>` | Fixed delay between requests |
+| `-o <path>` | Output path (`.html`, `.json`, `.csv`, `.yaml`) |
+| `--format sarif` | Output in SARIF format (for security scanning) |
+
+Exit code is non-zero when any assertion fails, making it suitable for CI gating.
+
+---
+
+### `view`
+
+Open the most recent evaluation results in a local browser UI.
+
+```bash
+promptfoo view
+```
+
+---
+
+### `share`
+
+Upload results and get a shareable URL.
+
+```bash
+promptfoo share
+```
+
+---
+
+### `cache clear`
+
+Clear all cached LLM responses.
+
+```bash
+promptfoo cache clear
+```
+
+---
+
+### `generate dataset`
+
+Use an LLM to auto-generate test cases from a prompt template.
+
+```bash
+promptfoo generate dataset
+promptfoo generate dataset --config path/to/config.yaml
+promptfoo generate dataset --output generated_tests.yaml
+promptfoo generate dataset --instructions "Consider edge cases related to international travel"
+```
+
+---
+
+### `redteam generate`
+
+Generate adversarial test cases for red-teaming.
+
+```bash
+promptfoo redteam generate
+promptfoo redteam generate -c promptfooconfig.yaml
+```
+
+---
+
+### `scan-model`
+
+Scan model files for security vulnerabilities. Outputs results in SARIF format.
+
+```bash
+promptfoo scan-model ./models/ --strict --no-write --format sarif --output scan.sarif
+```
+
+---
+
+### `auth`
+
+Manage authentication (for sharing and cloud features).
+
+```bash
+promptfoo auth login
+promptfoo auth logout
+```
+
+---
+
+## Rate-limit management
+
+```bash
+promptfoo eval --max-concurrency 1 --delay 3000
+```
+
+Or in config:
+```yaml
+evaluateOptions:
+  maxConcurrency: 2
+  delay: 3000
+```
+
+Environment variable for backoff:
+```bash
+export PROMPTFOO_REQUEST_BACKOFF_MS=10000
+export PROMPTFOO_RETRY_5XX=true
+```