Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add fzfclee/consulting-skills --skill decision-matrixgit clone --depth 1 https://github.com/fzfclee/consulting-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/fzfclee/consulting-skills/decision-matrix)<a href="https://agentmods.dev/skills/fzfclee/consulting-skills/decision-matrix"><img src="https://agentmods.dev/badge/skills/fzfclee/consulting-skills/decision-matrix/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/fzfclee/consulting-skills/decision-matrix"><img src="https://agentmods.dev/badge/skills/fzfclee/consulting-skills/decision-matrix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00051 | $0.00754 |
| Opus 5.5 | $0.00020 | $0.00302 |
| Sonnet 5.5 | $0.00010 | $0.00151 |
| Haiku 4.5 | $0.00005 | $0.00075 |
Grade A, and why
decision-matrix scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 17d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Decision Matrix
Use this skill to run Decision Matrix as a practical consulting method, not as a generic framework explanation.
Method Notes
- Define criteria before scoring options.
- Weights should reflect the real decision, not post-hoc preference.
Required Inputs
Collect or infer these inputs before execution:
- options
- decision criteria
- weights
- evidence for scoring
Apply the When Not To Use conditions before this missing-input rule. If any condition applies, do not score or rank options; state the blocking condition and the smallest next clarification or validation action. For other missing inputs, mark them as missing, label any assumption used, and add a validation action.
When Not To Use
Do not use when there is only one viable option, the decision criteria are not agreed, or mandatory requirements remain unresolved. Apply hard gates before weighted scoring.
Adjacent Methods
weighted-scorecard: repeatable governance evaluation across comparable entities.rice-scoring: product or initiative backlog prioritization.wsjf-prioritization: sequencing by Cost of Delay and Job Size.
Step-by-Step Execution
| Step | Required input | How to execute | Output |
|---|---|---|---|
| Define decision | Decision statement, options, must-have constraints. | Remove non-viable options before scoring. | Viable option set. |
| Choose criteria | Objectives, stakeholder priorities, risk constraints. | Select criteria that actually decide success. | Criteria list. |
| Weight criteria | Criteria and decision priorities. | Assign weights totaling 100 percent or another explicit scale. | Weighted criteria. |
| Score options | Options, criteria, evidence. | Score each option against each criterion and record rationale. | Completed decision matrix. |
| Recommend and test | Scores and uncertain assumptions. | Pick recommendation, show tradeoffs, and test whether weight changes alter the choice. | Decision recommendation. |
Output Template
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 17d ago Changed 544734ffe84e
- 1mo ago First seen · 88 lines · 51 tokens per session scan A b86a3ce849be
decision-matrix is a skill published in the GitHub repository fzfclee/consulting-skills (7 stars, last pushed 15d ago), licensed Apache-2.0. It adds 51 tokens to every session and 754 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
apply-insight-synthesis
Use when you've gathered a substantial body of research or data and are about to write up or present it — stop gathering, cluster the findings by underlying pattern rather than by source or chronology, and repeatedly ask "so what does this mean for the decision" until you reach a small number of specific, actionable…
taxue
A main entry point for a decision-support system that asks questions, clarifies what you really need, and guides you toward an action.
taxue-learn
A learning method that turns information into usable understanding through four stages of practice and internalisation. It includes approaches such as the Feynman technique, which means explaining an idea simply to test your understanding.
taxue-diagnosis
A structured diagnosis method that examines a situation through quick, detailed, or multiple-perspective reviews. It covers life planning, business viability, business models, and possible blind spots.
taxue-job-search
A job-listing search service that looks for real open positions by location, education requirements, and employer type, then checks information across multiple sources.
taxue-solve
A thinking aid that turns a vague problem or difficult choice into a clear plan of action. It first examines what the real problem is, including whether emotions are hiding the main question.