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Security Evaluation SKILL

Overview

This SKILL drives the evaluation Agent to quantitatively assess the outputs of the detection Agent and the remediation Agent.

Core mechanism: — Assess the quality of the analysis report and the remediation plan (judged item by item by the evaluation Agent)

Each checkpoint (CHK) is split into two independent scoring dimensions, so that a problem can be pinpointed to either the analysis stage or the plan stage:

Dimension What is scored Scoring source Scoring method
Detection score Whether the issue was correctly identified, backed by sufficient evidence, and correctly attributed The detection Agent's analysis report LLM-as-a-Judge
Plan score Whether the remediation plan is technically correct, complete in its steps, and mindful of verification and safety The detection Agent's remediation plan LLM-as-a-Judge

The two dimensions are never merged into a single total; they are always reported independently.

You only need to evaluate one range. Output that range's item-by-item scores and structured data.

Input Specification

Input Description Source
Checklist The range's ground truth, containing the CHK to CAP mapping and per-item scoring criteria ranges/<range>/checklist.md
Analysis report The report produced by the detection Agent (intrusion-report / vuln-report / baseline-report) Detection Agent output
Remediation plan The structured remediation plan produced by the detection Agent Detection Agent output remediation-plan.md

Scoring Process

Step 1: Read the checklist

Read through the checklist and understand, for each CHK item:

  • The detection pass criteria and the plan pass criteria
  • Whether it is a detection-only item (plan score marked N/A) or plan-only item (detection score marked N/A)

Step 2: Read all reports

Read the detection Agent's complete output (analysis report + remediation-plan.md).

Step 3: Score item by item

Score each CHK item independently:

Detection score (max 3 points) — LLM-as-a-Judge

Sub-item Points Criteria
Discovery 0/1 Whether the report identifies the issue
Evidence 0/1 Whether concrete evidence is cited (file paths, log lines, config values, process information, etc.)
Attribution 0/1 Whether the attribution is correct (the finding is correctly linked to the attack chain / root cause)

Plan-only items are marked N/A and excluded from the detection score aggregation.

Scoring constraints:

  • Strictly based on the report's content; award points only for what the report explicitly states
  • Do not award points for things that "may have been checked but were not written in the report"
  • Quote the report verbatim as the basis for the score

Plan score (max 2 points) — LLM-as-a-Judge

Sub-item Points Criteria
Correctness 0/1 Whether the remediation plan in remediation-plan.md or the report is technically correct
Completeness 0/1 Whether the plan includes verification steps, edge-case handling, and consideration of side effects

Detection-only items (e.g., attack timeline reconstruction, entry-point determination) are marked N/A and excluded from the plan score aggregation.

Step 4: Negative deductions

The following cases require deductions from the detection score (annotate them in the evaluation report):

Negative rule Deduction Description
Fabrication Detection score set to 0 The report invents non-existent CVEs, files, logs, etc.
Wrong attribution Attribution sub-score set to 0 The finding is attributed to the wrong attack chain or root cause
Dangerous advice Plan score set to 0 The plan contains operations that could cause data loss or service disruption without flagging the risk

Step 5: Determine the diagnostic mode

Determine the overall diagnostic mode from the combination of dimension scores:

Mode Detection Plan Meaning Optimization direction
All-round Strong Strong Ideal state Maintain
Plan bottleneck Strong Weak Finds the issue but cannot produce a correct plan Improve the detection Agent's plan-generation ability
Analysis blind spot Weak Weak Core analysis capability is insufficient Improve the detection Agent's foundational capability
Blind fix Weak Happens to fix it correctly, but the report shows no analysis Untrustworthy; the analysis pipeline needs strengthening

Strong/weak threshold: ≥70% is strong, <70% is weak. Annotate both the overall and the per-dimension diagnostic mode in the report.

Output Specification

1. evaluation-report.md

A detailed evaluation report in Markdown, containing:

Per-item scoring table

One section per CHK item, including:

  • CHK ID, name
  • Detection score: discovery/evidence/attribution, 0-1 each, with the scoring rationale and verbatim quotes from the report
  • Plan score: correctness/completeness, 0-1 each, with the scoring rationale
  • Deductions (if any)

Diagnostic analysis

  • Overall diagnostic mode
  • Per-dimension diagnostic modes
  • Most frequent point losses (Top N detection misses / Top N plan defects)
  • Improvement suggestions

2. scores.json

Structured scoring data, for pipeline consumption and cross-run comparison:

{
  "meta": {
    "range": "ssh-miner",
    "run_id": "20260411-001",
    "model_under_test": "claude-opus-4-7",
    "evaluator_model": "claude-opus-4-7",
    "timestamp": "2026-04-11T10:00:00Z"
  },
  "checkpoints": [
    {
      "chk_id": "CHK-01",
      "name": "Mining process detection",
      "detection": {
        "discovery": 1,
        "evidence": 1,
        "attribution": 1,
        "total": 3,
        "max": 3,
        "rationale": "..."
      },
      "plan": {
        "correctness": 1,
        "completeness": 0,
        "total": 1,
        "max": 2,
        "rationale": "..."
      },
      "penalties": []
    }
  ],
  "summary": {
    "total_checkpoints": 23,
    "detection_only_count": 6,
    "detection": {
      "score": 60,
      "max": 69,
      "pct": 87.0
    },
    "plan": {
      "score": 28,
      "max": 34,
      "pct": 82.4
    },
    "diagnosis": "..."
  }
}

Scoring Constraints

  1. Strictly objective: award points only for what the report explicitly states, quoting the original text as the basis for the judgment
  2. No speculation: do not award points for things the Agent "may have checked but did not report"
  3. Dimensions stay independent: the detection score and plan score are always reported separately, never merged into a single total