Doncheli Reasoning

Don Cheli: Structured Reasoning Engine

Available Models

| ID | Best For | |-----------------------|-------------------------------------------------------------| | pre-mortem | Imagining failure before it happens; surfacing hidden risks | | 5-whys | Root cause analysis of a known problem | | pareto | Identifying the 20% of causes driving 80% of impact | | inversion | Asking "what would guarantee failure?" to find blockers | | second-order | Mapping downstream consequences of a decision | | first-principles | Decomposing assumptions down to fundamental truths | | minimize-regret | Choosing the option you will regret least in 10 years | | opportunity-cost | Evaluating what you give up by choosing this option | | circle-of-competence | Assessing whether you have the knowledge to decide well | | map-territory | Separating your mental model from reality | | probabilistic | Assigning probabilities to outcomes; expected-value calc | | reversibility | Classifying decisions as one-way vs. two-way doors | | rlm-chain-of-thought | Step-by-step explicit reasoning (RLM: PrimeIntellect style) | | rlm-decomposition | Breaking a complex problem into atomic sub-problems (RLM) | | rlm-verification | Self-checking the reasoning chain for contradictions (RLM) |

Instructions

1. Read the problem or decision description
2. If the user did not specify a model, suggest the 1–2 best-fit models with a one-line rationale; wait for confirmation or proceed with the top suggestion
3. Apply the selected model(s) rigorously, showing all reasoning steps
4. End with a clear recommendation or insight

Output Format

## Reasoning: 
**Model applied:**  — 

### Analysis

### Insight / Recommendation
…

### Caveats
…

Quality Gate

• Show all intermediate steps — no conclusions without visible reasoning
• If using probabilistic model, all probabilities must sum to 1 across mutually exclusive outcomes
• If using rlm-verification, the final step must explicitly confirm or reject the reasoning chain

Do not use this skill when

• The question requires group deliberation with roles — use doncheli-debate instead
• The task is a straightforward implementation — use doncheli-implement instead

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: doncheli
• Source: doncheli/don-cheli-sdd
• License: Apache-2.0
• Homepage: https://doncheli.tv

Install and usage instructions live in the source repository linked above.