Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/SebastianElvis/reapernpx agentmods add skills/sebastianelvis/reaper/formalize-problemWrote 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/sebastianelvis/reaper/formalize-problem)<a href="https://agentmods.dev/skills/sebastianelvis/reaper/formalize-problem"><img src="https://agentmods.dev/badge/skills/sebastianelvis/reaper/formalize-problem.svg" alt="Measured on agentmods" 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 | $0.00048 | $0.01407 |
| Opus 5 | $0.00024 | $0.00704 |
| Sonnet 5 | $0.00010 | $0.00281 |
| Haiku 4.5 | $0.00005 | $0.00141 |
Grade A, and why
formalize-problem 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 8d 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 — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Formalize Problem
Transform a research goal into precise, testable hypotheses with explicit success/failure conditions.
Usage
Invoke this skill by name with the research goal as a quoted string. On slash-command hosts, prefix with / (e.g. /formalize-problem "<goal>").
formalize-problem "determine if the security proof in Section 4 holds under asynchrony"
Instructions
1. Read Inputs
Always read:
reaper-workspace/notes/clarified-goal.md— refined research goal, scope, assumptions, and success criteriareaper-workspace/notes/paper-summary.md— what the paper claims and how. If this file does not exist (paper-less mode), proceed without it — use the literature review and clarified goal as primary inputs instead.- The research goal from the argument (use the refined goal from
clarified-goal.mdif available)
Read selectively from:
reaper-workspace/notes/literature.md— focus on the "Key Prior Results" and "Gaps Identified" sections, not the full paper tables. Only deep-read individual paper entries if a specific prior result is needed for hypothesis screening. In paper-less mode, this becomes the primary technical context — read it more thoroughly.
2. Identify the Core Question
What exactly needs to be resolved? Be specific. "Is this protocol secure?" is too vague. "Does the safety proof of Protocol X hold when the adversary is adaptive rather than static?" is testable.
3. Pin Down Model Assumptions (must be unambiguous before hypotheses)
Pin down every dimension of the system/trust model. If any dimension is left vague, the investigation will produce ambiguous results. Consult ../reaper/references/model.md for the domain-appropriate checklist of dimensions that must be specified. Every field must have a concrete answer, not "TBD".
Every hypothesis must reference these model assumptions by specifying which parameters it holds under. A hypothesis that states a claim without pinning every relevant dimension is rejected.
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.
- 8d ago First seen · 121 lines · 48 tokens per session scan A 4b0ec6d45f31
formalize-problem is a skill published in the GitHub repository SebastianElvis/reaper (9 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 48 tokens to every session and 1,407 once invoked, about $0.0002 per session on Opus 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.
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