---

name: eiffel-verify description: Phase 5 of Eiffel Spec Kit. Generates test suite derived from contracts and runs tests. Includes AI chain coverage gap analysis. Use with /eiffel.verify command. allowed-tools: Read, Grep, Glob, Edit, Write, Bash, Task

/eiffel.verify - Phase 5: Test Generation and Verification

Purpose: Flesh out skeletal tests, generate contract-derived tests, verify all tests pass.

Usage

/eiffel.verify <project-path>

Project Scoping

<project-path>/
├── .eiffel-workflow/
│   ├── prompts/
│   │   └── phase5-coverage-review.md
│   └── evidence/
│       ├── phase5-tests.txt
│       └── phase5-coverage.txt
├── test/*.e (tests fleshed out here)

Prerequisites

• Phase 4 complete: implementation compiles

Workflow

Step 1: Flesh Out Skeletal Tests

Complete tests created in Phase 1.

Step 2: Generate Contract-Derived Tests

For each postcondition, ensure a test verifies it.

Step 3: Generate Coverage Review Prompt

Create <project-path>/.eiffel-workflow/prompts/phase5-coverage-review.md:

# Test Coverage Review

## Contracts
[PASTE src/*.e]

## Tests
[PASTE test/*.e]

## Check For:
- Postconditions without corresponding tests
- Edge cases not tested
- Precondition boundary tests missing

Step 4: Compile and Run Tests (MANDATORY GATE)

CRITICAL: You MUST cd to the project directory before compiling. The EIFGENs folder is created in the current working directory, not where the ECF file is located. Compiling from the wrong directory pollutes other folders with build artifacts.

cd <project-path> && /d/prod/ec.sh -batch -config <project>.ecf -target <project>_tests -c_compile
./EIFGENs/<project>_tests/W_code/<project>.exe

ZERO WARNINGS POLICY: If the compiler reports obsolete call warnings or any other warnings, FIX THEM IMMEDIATELY. Do not note them and move on. Do not defer them. Fix them right now before proceeding.

ALL TESTS MUST PASS.

Step 5: Save Evidence

Save to <project-path>/.eiffel-workflow/evidence/phase5-tests.txt:

# Phase 5 Test Evidence
# Project: <project-path>
# Date: [timestamp]

[Paste test output]

Tests run: [count]
Tests passed: [count]
# Status: PASS / FAIL

Context Management (RLM Pattern)

This skill focuses ONLY on: <project-path>

DO NOT:

• Read files outside this project directory
• Load entire ecosystem or multiple libraries into context
• Keep large file contents in working memory

DO:

• Use Task tool with Explore agent for ecosystem questions
• Ask targeted questions when tests need to understand external library behavior
• Release context after getting answers

Example - Ecosystem Query:

Need to understand how simple_testing assertions work? Don't read all its files.
Instead: Task(subagent_type=Explore) → "What assertions does EQA_TEST_SET provide?"

The sub-agent searches, summarizes, and returns ONLY what you need. Your context stays focused on this project.

Completion

Phase 5 COMPLETE: Verification passed.
Project: <project-path>

Tests: [N] passed

Next: Run /eiffel.harden <project-path> for adversarial testing.