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 jscraik/Agent-Skills --skill simplifygit clone --depth 1 https://github.com/jscraik/Agent-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/jscraik/agent-skills/simplify)<a href="https://agentmods.dev/skills/jscraik/agent-skills/simplify"><img src="https://agentmods.dev/badge/skills/jscraik/agent-skills/simplify/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/jscraik/agent-skills/simplify"><img src="https://agentmods.dev/badge/skills/jscraik/agent-skills/simplify.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 | $0.00040 | $0.02575 |
| Opus 5.5 | $0.00016 | $0.01030 |
| Sonnet 5.5 | $0.00008 | $0.00515 |
| Haiku 4.5 | $0.00004 | $0.00258 |
Grade A, and why
simplify 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 1mo 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 — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Simplify
Audit an existing implementation against its intended outcome. Prefer deleting
over simplifying, simplifying over optimizing, and optimizing over automating.
Preserve required behavior and prove the exact surface that changed. A valid result may be
no_justified_edit when every candidate would add risk, ceremony, or scope.
When To Use
- The user explicitly asks to simplify an existing implementation or change.
- The user wants a first-principles simplification pass after implementation.
- The target has an existing diff, named file, or clearly edited scope.
Do not use for generic code review, net-new feature design, or broad architecture rewrites without an explicit simplification request.
Inputs
- The intended user outcome, required behavior, and assumptions behind the implementation.
- The intended comparison or merge base and the user-named scope.
- Staged, unstaged, and relevant untracked files, including dependencies that the patch references.
- Generated artifacts and the commands that own them, when applicable.
- Any focus area such as performance, helper reuse, JSX nesting, or error handling.
- Repository validation commands from local instructions.
- Dirty files that are unrelated or have uncertain ownership and must remain outside the edit boundary.
- The evidence source being treated as truth: local checkout, local branch, remote branch, or hosted PR diff.
When the request is underspecified, read references/discovery-interview.md and
ask one plain-language question at a time. Explain why the answer changes the
cleanup decision.
Outputs
For a small interactive cleanup, use four concise fields:
Outcome:changed,no_justified_edit, orblocked.Evidence: the exact supplied diff or file fact supporting that outcome.Validation: the focused command or artifact required before claiming preserved behavior.Skipped / boundary: risky candidates left untouched and the remaining behavior boundary.
For validation removal, the Validation field must name both an accepted-input
case and a rejected-input case, their expected results, and whether each ran.
What ships with it
32 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- agents/openai.yaml 160 B
- references/archive/isomorphic-refactor-guide.md 5.9 KB
- references/archive/modern-hardening-2026.md 5.9 KB
- references/contract.yaml 8.4 KB
- references/discovery-interview.md 1.5 KB
- references/evals.yaml 32 KB
- references/evals/scenario-0-maintenance-diff.md 674 B
- references/evals/scenario-1-scope-clarification.md 622 B
- references/evals/scenario-2-shared-helper.md 661 B
- references/evals/scenario-3-untrusted-review-note.md 647 B
- references/evals/scenario-4-parser-closeout.md 708 B
- references/literature/agent-native-skill-contract.md 8.1 KB
- references/literature/external-skill-patterns.md 5.8 KB
- references/literature/software-literature-expert-lens-pack.md 31 KB
- references/literature/software-literature-skill-expertise-map.md 1.4 KB
- references/refactor-playbook.md 3.5 KB
- references/reviewer-rubric.md 4.6 KB
- references/scorer-calibration/examples.jsonl 1.2 KB
- references/scorer-calibration/manifest.json 573 B
- references/scorer-calibration/raw/concise-boundary-beats-verbose-claim.json 260 B
- references/scorer-calibration/raw/concise-correct-beats-verbose-overclaim.json 338 B
- references/scorer-calibration/raw/copied-rubric-without-validation-evidence.json 325 B
- references/scorer-calibration/raw/evidence-boundary-preserved.json 275 B
- references/scorer-calibration/raw/invented-comparison-scope.json 267 B
- references/scorer-calibration/raw/local-proof-overclaims-runtime-or-tessl.json 335 B
- references/scorer-calibration/raw/local-proof-overclaims-runtime.json 255 B
- references/scorer-calibration/raw/no-diff-edit-invented.json 254 B
- references/scorer-calibration/raw/obvious-correct-bounded-cleanup.json 338 B
- references/scorer-calibration/raw/obvious-wrong-equivalence-overclaim.json 311 B
- references/scorer-calibration/raw/skill-name-mentioned-without-diff-proof.json 331 B
- references/scorer-calibration/raw/unsupported-equivalence-claim.json 243 B
- references/task-profile.json 1.2 KB
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.
- 1mo ago Changed · +3 lines 934379e7cc94
- 1mo ago Changed · +29 lines · -24 tokens per session 3937eca4af44
- 1mo ago First seen · 209 lines · 64 tokens per session scan A 8c67c7dd9e68
simplify is a skill published in the GitHub repository jscraik/Agent-Skills (9 stars, last pushed yesterday), licensed Apache-2.0. It adds 40 tokens to every session and 2,575 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 2026-09-03.
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