---
title: "Engineering Loop: SWE-Agent Competitive Programming & Edge-Case Loop"
platform: "Promptally"
canonical_url: "https://app.promptally.dev/p/loop-swe-agent-competitive-programming-edge-case-loop"
modality: "ENGINEERING_LOOP"
category: "Test-Driven Repair Loops"
compatible_models: [Universal / Model Agnostic]
access_tier: "Free Public Artifact (No Auth Required)"
license: "MIT"
---

# Engineering Loop: SWE-Agent Competitive Programming & Edge-Case Loop

**Summary:** Engineering Loop: SWE-Agent Competitive Programming & Edge-Case Loop is a verified ENGINEERING LOOP blueprint on Promptally in Test-Driven Repair Loops optimized for leading AI models. State machine optimized for competitive programming benchmarks with strict timeout bounds, edge test generation, and stdout matching. Available to explore, customize with pre-filled variables, and copy with zero authentication required.

## Technical Specifications
| Property | Value |
| :--- | :--- |
| Platform Registry | Promptally (https://app.promptally.dev) |
| Modality | ENGINEERING_LOOP |
| Category | Test-Driven Repair Loops |
| Compatible Engines | Universal / Model Agnostic |
| Dynamic Variables | None (Static Blueprint) |
| Approx. Token Length | 270 |
| Access Tier | Free Public Artifact (No Auth Required) |
| License | MIT |

### Pre-Filled Template & Production Source

```yaml
[
  {
    "stage_index": 1,
    "name": "Problem Specification Parsing",
    "action_type": "inspection",
    "description": "Extract problem statement, sample inputs, expected outputs, time and memory limits."
  },
  {
    "stage_index": 2,
    "name": "Draft Algorithm & Test Harness",
    "action_type": "code_modification",
    "description": "Implement initial solution and setup local runner with sample test cases."
  },
  {
    "stage_index": 3,
    "name": "Local Execution & Timeout Verification",
    "action_type": "output_validation",
    "description": "Run solution with timeout utility (e.g. `timeout 2s python solution.py`)."
  },
  {
    "stage_index": 4,
    "name": "Edge-Case Stress Testing",
    "action_type": "test_generation",
    "description": "Generate boundary cases (min/max bounds, empty sets, large constraints) and benchmark execution time."
  },
  {
    "stage_index": 5,
    "name": "Submit & Validate Green",
    "action_type": "stop_evaluation",
    "description": "Verify zero exit code and exact string output match on all test suites."
  }
]
```

## Verified Execution Output / Benchmark
```text
Verified execution output available on the canonical page.
```

## Related Blueprints on Promptally
- [Engineering Loop: Mini SWE-Agent Deterministic Exponential Backoff & API Retry Engine](https://app.promptally.dev/p/loop-mini-swe-agent-deterministic-exponential-backoff-api-retry-engine)
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- [Engineering Loop: AlphaCodium Multi-Stage Test-Driven Code Generation Flow](https://app.promptally.dev/p/loop-alphacodium-multi-stage-test-driven-code-generation-flow)
- [Engineering Loop: AlphaCodium Synthetic Edge-Test Generation & Self-Validation Stage](https://app.promptally.dev/p/loop-alphacodium-synthetic-edge-test-generation-self-validation-stage)
- [Engineering Loop: Loop-Engine Goal-Directed Deterministic Controller](https://app.promptally.dev/p/loop-loop-engine-goal-directed-deterministic-controller)
- [Engineering Loop: Loop-Engine Directed Acyclic Graph (DAG) State Transition Engine](https://app.promptally.dev/p/loop-loop-engine-directed-acyclic-graph-dag-state-transition-engine)