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 SW-in-beta/simon-skills --skill simongit clone --depth 1 https://github.com/SW-in-beta/simon-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/sw-in-beta/simon-skills/simon)<a href="https://agentmods.dev/skills/sw-in-beta/simon-skills/simon"><img src="https://agentmods.dev/badge/skills/sw-in-beta/simon-skills/simon/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/sw-in-beta/simon-skills/simon"><img src="https://agentmods.dev/badge/skills/sw-in-beta/simon-skills/simon.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 | $0.00169 | $0.09443 |
| Opus 5.5 | $0.00068 | $0.03777 |
| Sonnet 5.5 | $0.00034 | $0.01889 |
| Haiku 4.5 | $0.00017 | $0.00944 |
Grade A, and why
simon 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 2mo 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 — 470 lines — stays where its author put it; the contents beside it link to each section on GitHub.
simon
Deep workflow skill with 19-step quality pipeline.
Instructions
You are executing the simon deep workflow. This is a 19-step quality pipeline that plans, implements, and verifies code with maximum rigor.
State-Driven Execution
매 턴(응답) 시작 시 반드시 실행하는 루틴 — compaction, 세션 재개, 작업 전환 후 복귀 등 어떤 상황에서도 적용된다. 이 루틴이 없으면 compaction 후 현재 위치를 잃고 이전 Step을 반복하거나 건너뛸 수 있다:
{SESSION_DIR}/memory/workflow-state.json읽기current_step에 해당하는 Phase의 reference 목록 확인 (Reference Loading Policy 테이블)references_loaded필드에 해당 reference가 없으면 → 재로딩. 있으면 → 스킵. Compaction 감지 시 Tier별 선택적 초기화 — Tier 1은 강제 재로딩, Tier 2는 현재 Phase에 해당하는 것만 재로딩, Tier 3는 초기화하지 않음 (on-demand 트리거로 자연스럽게 재로딩). "이전에 읽었으니 알고 있다"가 LLM 기억이 아닌 JSON 기록에 기반해야 핵심 규칙 소실을 방지한다. 3-B. 이전 Step 산출물 로딩 (세션 독립성 핵심):step_outputs[prev_step]에 기록된 파일들을 로딩한다.
- 새 세션 감지 시 (workflow-state.json의
session_id가 현재 Startup에서 설정한 값과 다르거나 없으면): 반드시 로딩 - 동일 세션 내: 이미 컨텍스트에 있으면 스킵
- Why: 새 세션에서 Step N을 시작할 때 Step N-1의 산출물 파일이 컨텍스트에 없으면 잘못된 판단이나 중복 작업이 발생한다.
step_outputs는 Step 완료 시 기록되므로, 이 파일들을 로딩하면 이전 Step의 결과를 즉시 복원할 수 있다.
- 해당 Step 실행
- Step 완료 즉시 workflow-state.json 갱신 (
references_loaded+step_outputs포함)
workflow-state.json이 없으면 Startup부터 시작한다.
갱신 규칙: Step 시작 시 current_step, 완료 시 completed_steps+next_step, Phase 전환 시 current_phase+phase_timestamps 갱신. 중단/에러: blocked: true. Step skip 시 skipped_steps 기록. Phase A 완료 시 Done-When Checks → done_when_checks 배열 추출 (verified: false 초기값). Step 5d/6/17 검증 통과 시 verified: true 갱신. Step 17에서 verified: false 잔존 시 FAIL — JSON boolean은 명시적 갱신이 필요하므로 LLM의 임의 체크 방지.
Step 산출물 추적 (세션 독립성): Step 완료 시 step_outputs[step_id]에 해당 Step이 생성한 핵심 파일의 경로 목록(SESSION_DIR 기준 상대 경로)을 기록한다. 이 목록이 다음 세션의 진입점이 된다 — 새 세션에서 Step N을 시작할 때 step_outputs[prev_step]을 읽으면 이전 Step의 산출물을 즉시 로딩할 수 있다. Startup 시 session_id를 ISO-8601 타임스탬프로 기록하여, 새 세션과 compaction 복구를 구분한다.
{
"current_step": "B/7",
"session_id": "2026-04-14T10:30:00+09:00",
"step_outputs": {
"A/0": ["memory/codebase-health.md", "memory/plan-summary.md"],
"A/1-A": ["memory/requirements.md", "memory/code-design-analysis.md", "memory/verify-commands.md", "memory/env-context.md"],
"A/1-B": ["memory/plan-summary.md"],
"A/2-4": ["memory/plan-summary.md", "memory/plan-review-scores.md"],
"A/4-B": ["memory/expert-plan-concerns.md"],
"B/pre": ["CONTEXT.md"],
"B/5": ["memory/unit-{name}/test-case-summary.md", "memory/inline-issues.md"],
"B/6": ["memory/unit-{name}/alignment-verdict.md", "memory/unit-{name}/working-example.md"],
"B/7": ["memory/unit-{name}/review-findings.md"]
}
}
What ships with it
55 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.
- install.sh 6.1 KB runs code
- README.md 10 KB
- references/agent-capability-matrix.md 5.6 KB
- references/agent-teams.md 11 KB
- references/context-separation.md 7.6 KB
- references/cross-cutting-protocols.md 22 KB
- references/docs-first-protocol.md 3.0 KB
- references/error-resilience.md 11 KB
- references/expert-output-schema.md 9.6 KB
- references/forbidden-rules.md 3.7 KB
- references/gate-definitions.md 7.0 KB
- references/generation-style-guide.md 11 KB
- references/gotchas.md 3.8 KB
- references/integration-and-review.md 15 KB
- references/phase-a-planning.md 30 KB
- references/phase-a-review.md 18 KB
- references/phase-b-implementation.md 29 KB
- references/phase-b-verification.md 35 KB
- references/review-rubric.md 7.8 KB
- scripts/create-branch.sh 1.2 KB runs code
- workflow/config.yaml 7.5 KB
- workflow/prompts/api-expert.md 1.8 KB
- workflow/prompts/appsec-expert.md 2.9 KB
- workflow/prompts/async-expert.md 3.0 KB
- workflow/prompts/auth-expert.md 1.7 KB
- workflow/prompts/cache-expert.md 2.8 KB
- workflow/prompts/caching-expert.md 1.5 KB
- workflow/prompts/concurrency-expert.md 1.5 KB
- workflow/prompts/convention-expert.md 3.8 KB
- workflow/prompts/db-expert.md 1.7 KB
- workflow/prompts/design-pattern-expert.md 3.4 KB
- workflow/prompts/external-integration-expert.md 3.1 KB
- workflow/prompts/idiom-expert.md 3.7 KB
- workflow/prompts/infra-expert.md 1.5 KB
- workflow/prompts/infrasec-expert.md 3.0 KB
- workflow/prompts/messaging-expert.md 1.5 KB
- workflow/prompts/nosql-expert.md 2.7 KB
- workflow/prompts/observability-expert.md 3.1 KB
- workflow/prompts/performance-expert.md 3.3 KB
- workflow/prompts/rdbms-expert.md 3.0 KB
- workflow/prompts/stability-expert.md 3.0 KB
- workflow/prompts/sync-api-expert.md 2.9 KB
- workflow/prompts/testability-expert.md 3.3 KB
- workflow/scripts/check-sizes.sh 2.9 KB runs code
- workflow/scripts/classify-error.sh 4.2 KB runs code
- workflow/scripts/detect-progress.sh 2.1 KB runs code
- workflow/scripts/extract-diff.sh 1.0 KB runs code
- workflow/scripts/find-dead-code.sh 2.4 KB runs code
- workflow/scripts/manage-sessions.sh 12 KB runs code
- workflow/scripts/retry-budget.sh 934 B runs code
- workflow/scripts/run-tests.sh 2.3 KB runs code
- workflow/scripts/setup-test-env.sh 10 KB runs code
- workflow/scripts/typecheck.sh 806 B runs code
- workflow/scripts/verify-build.sh 1.2 KB runs code
- workflow/templates/report-template.md 1.6 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.
- 2mo ago First seen · 470 lines · 169 tokens per session scan A f177c7ed8a4c
simon is a skill published in the GitHub repository SW-in-beta/simon-skills (2 stars, last pushed 2mo ago), licensed MIT. It adds 169 tokens to every session and 9,443 once invoked, about $0.0007 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.
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