Compare skills
Pick 2–4 skills and compare what really matters: fit, risk, install effort, and community signal.
Comparison matrix
Highlights show current best; tooltip explains diff/best rules.
SAS-v2.1 diff rules / risk tag notes
Start with the matrix. Open this section when you need to understand audit grades, top threats, control gaps, and best-value highlights.
ultimate-prompt-engineering-playbook
amerob/ultimate-prompt-engineering-playbook · Score 82
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How differences are detected
A row is marked different when selected skills have distinct values. Only-differences mode hides rows that are identical.
How best values are highlighted
Audit score, evidence confidence, trust score, and community signal prefer higher values; execution risk and install friction prefer lower values.
How to read risk tags
Risk tags come from SAS-v2.1 public-evidence signals and point to command, network, secret, context, or supply-chain items to review before install.
Selected audit signals
acli-rovo-reverse-engineering
Execution risk：High
Threat tags：prompt injection, tool poisoning, unexpected code execution
Control gaps：missing license, broad permissions, shell without guardrails
mcp-for-beginners
Execution risk：High
Threat tags：unexpected code execution, data exfiltration, memory context poisoning
Control gaps：missing license, broad permissions, shell without guardrails
ClaudeBar
Execution risk：High
Threat tags：unexpected code execution, data exfiltration, human approval gap
Control gaps：missing license, broad permissions, shell without guardrails
ultimate-prompt-engineering-playbook
Execution risk：High
Threat tags：prompt injection, tool poisoning, unexpected code execution
Control gaps：missing license, broad permissions, shell without guardrails
| Dimension | acli-rovo-reverse-engineering | mcp-for-beginners | ClaudeBar | ultimate-prompt-engineering-playbook |
|---|---|---|---|---|
| SAS-v2.1 pre-install audit | ||||
Audit grade | C · Review first | C · Review first | C · Review first | C · Review first |
Execution risk | High | High | High | High |
Threat tags | prompt injection, tool poisoning, unexpected code execution | unexpected code execution, data exfiltration, memory context poisoning | unexpected code execution, data exfiltration, human approval gap | prompt injection, tool poisoning, unexpected code execution |
Control gaps | missing license, broad permissions, shell without guardrails | missing license, broad permissions, shell without guardrails | missing license, broad permissions, shell without guardrails | missing license, broad permissions, shell without guardrails |
Permission summary | Permission review, Network, Command | Permission review, Network, Command | Permission review, Network, Command | Permission review, Network, Command |
Evidence confidence | 67% | 67% | 65% | 67% |
| Source & provenance | ||||
Provenance | ghuntley/acli-rovo-reverse-engineering | microsoft/mcp-for-beginners | tddworks/ClaudeBar | amerob/ultimate-prompt-engineering-playbook |
Category | Dev & Engineering | Dev & Engineering | Dev & Engineering | Dev & Engineering |
Freshness | ||||
| Risk & trust | ||||
Trust score | 60 | 85 | 82 | 82 |
Audit signals | No explicit signals | No explicit signals | ||
| Install & compatibility | ||||
Supported tools | Universal | Universal | Universal | Universal |
Install method | script-backed | script-backed | script-backed | script-backed |
Install friction | ||||
| Community | ||||
Stars | 14 | 15.8K | 893 | 19 |
2025-06-14 |
2026-04-08 |
2026-04-01 |
2026-04-06 |
No explicit signals |
Permission hints | repository clone, local runtime dependencies | repository clone, local runtime dependencies | repository clone, local runtime dependencies | repository clone, local runtime dependencies |
|---|
40 |
40 |
40 |
40 |
