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 BoxLogoDev/sapstack --skill sap-s4-migrationgit clone --depth 1 https://github.com/BoxLogoDev/sapstackWrote 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/boxlogodev/sapstack/sap-s4-migration)<a href="https://agentmods.dev/skills/boxlogodev/sapstack/sap-s4-migration"><img src="https://agentmods.dev/badge/skills/boxlogodev/sapstack/sap-s4-migration.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 | $0.00132 | $0.02000 |
| Opus 5 | $0.00066 | $0.01000 |
| Sonnet 5 | $0.00026 | $0.00400 |
| Haiku 4.5 | $0.00013 | $0.00200 |
Grade A, and why
sap-s4-migration 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 3d 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 — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.
1. Approach Decision Tree
Q1: Keep existing configuration and historical data?
YES → System Conversion (Brownfield)
NO → New Implementation (Greenfield)
SOME → Selective Data Transition (Bluefield / Shell Conversion)
Q2: Target deployment model?
On-premise → Full flexibility; custom code with restrictions
RISE (PCE) → Managed infrastructure; same S/4HANA functionality
S/4HANA Cloud PE → Clean Core only — no modifications, no ABAP CBO
Approach Comparison
| Aspect | Brownfield | Greenfield | Bluefield |
|---|---|---|---|
| Data migration | Automatic (SUM/DMO) | Manual (LTMC) | Selective |
| Configuration | Carried over | Redesigned | Mix |
| Custom code | Must remediate | Can replace with standard | Must remediate |
| Project duration | Shorter | Longer | Longest |
| Risk | Medium | Lower (for processes) | High (complex) |
| Best for | Large existing systems | Major transformation | Demerger / consolidation |
2. SAP Readiness Check — Critical Simplification Items
FI / Accounting
| Item ID | Impact | Description | Resolution |
|---|---|---|---|
| S4TWL_ACDOCA | High | Universal Journal mandatory; BSEG becomes secondary | Ensure New GL active; run Universal Journal migration |
| S4TWL_NEWGL | High | Classic GL not supported — New GL must be active | Activate New GL in ECC before SUM run |
| S4TWL_ASSETACCTG | High | New Asset Accounting mandatory; Classic AA removed | Run RAALTD01 migration report; verify parallel ledgers |
| S4TWL_MATERIAL_LEDGER | High | Material Ledger is mandatory in S/4HANA | Activate ML in ECC first if possible |
| S4TWL_BP | High | Business Partner mandatory; vendor/customer must become BP | Run BP migration (FLBPD1/FLBPD3) before conversion |
| S4TWL_COFI_RECONCILIATION | Medium | FI-CO reconciliation ledger removed | Ensure no open reconciliation items |
MM / Logistics
| Item ID | Impact | Description | Resolution |
|---|---|---|---|
| S4TWL_INVENTORY | High | Inventory tables restructured; MBEW→ACDOCA | No direct MBEW access — use CDS |
| S4TWL_PLANT | High | Valuation area must equal plant (1:1) | Consolidate if multiple valuation areas per plant |
| S4TWL_CENTRALPURCHORG | Medium | Central purchasing org restrictions | Review org structure |
What ships with it
11 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.
- references/best-practices/governance.md 2.2 KB
- references/best-practices/operational.md 1.6 KB
- references/best-practices/period-end.md 1.9 KB
- references/de/quick-guide-de.md 2.6 KB
- references/en/quick-guide-en.md 2.3 KB
- references/ja/quick-guide-ja.md 2.5 KB
- references/ko/quick-guide.md 2.2 KB
- references/ko/SKILL-ko.md 7.4 KB
- references/simplification-items.md 7.8 KB
- references/vi/quick-guide-vi.md 2.9 KB
- references/zh/quick-guide-zh.md 2.2 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.
- 3d ago First seen · 206 lines · 132 tokens per session scan A 41c90910edda
sap-s4-migration is a skill published in the GitHub repository BoxLogoDev/sapstack (18 stars, last pushed 7d ago), licensed MIT. It adds 132 tokens to every session and 2,000 once invoked, about $0.0007 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 2026-09-04.
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