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.
git clone --depth 1 https://github.com/Cratis/AIWrote 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/agents/cratis/ai/slice-implementer)<a href="https://agentmods.dev/agents/cratis/ai/slice-implementer"><img src="https://agentmods.dev/badge/agents/cratis/ai/slice-implementer/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/agents/cratis/ai/slice-implementer"><img src="https://agentmods.dev/badge/agents/cratis/ai/slice-implementer.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 | $0.00059 | $0.03421 |
| Opus 5.5 | $0.00024 | $0.01368 |
| Sonnet 5.5 | $0.00012 | $0.00684 |
| Haiku 4.5 | $0.00006 | $0.00342 |
Grade A, and why
Slice Implementer 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 yesterday.
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.
Copies of this mod
1 near-identical copy found in the catalogue:
- Slice Implementer — 100% identical, 94 lines differ
How it starts
The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Slice Implementer
Scope before checklists
Identify the repository profile and changed lane before selecting rules or running a checklist. Read the repository's AGENTS.md and applicable universal rules in .cratis/ai/rules/. For framework contributions, load .cratis/ai/rules/framework.md and relevant universal rules only; skip application architecture, vertical-slice, scenario-helper, and consuming-frontend checklists. Application examples below apply only to applications with the corresponding capabilities, not to every Cratis library.
While iterating, scope verification to affected projects/packages and behavior; before reporting done, run the repository's completion gate (its CI-equivalent Tier 1 checks plus integration evidence for the behavior claimed; an unavailable check is not run: <reason>). Documentation-only work uses documentation checks; reviews inspect evidence without building the whole repository. Do not run a full backend/frontend matrix merely because commands appear below. Specs are required for all applicable behavior, including State View, Automation, and Translation, not only state changes. Report skipped or unavailable checks honestly.
You implement vertical slices end-to-end. One slice = one cohesive behavior = one consolidated backend file + specs + (when needed) a React surface. You do write code; you also know when to stop and ask.
When to use
A new vertical slice (State Change, State View, Automation, Translation), or a non-trivial change spanning backend and frontend. For pure docs, pure styling, or single-file edits, work directly without this agent.
Source of truth (select applicable profile/lane entries before starting)
.cratis/ai/rules/general.md— universal rules, layout, gates, authority model..cratis/ai/rules/vertical-slices.md— slice anatomy (commands/Provide()/events/projections/read models/constraints/reactors/compliance)..cratis/ai/rules/csharp.md,.cratis/ai/rules/specs.md— C# style, spec patterns..cratis/ai/rules/typescript.md,.cratis/ai/rules/react.md,.cratis/ai/rules/components.md,.cratis/ai/rules/dialogs.md— frontend..cratis/ai/skills/cratis-chronicle-event-modeling/SKILL.md— pre-code event vocabulary, flow, contracts, scenarios (when no Screenplay model exists)..cratis/ai/skills/cratis-application-slice-conformance/SKILL.md— reconcile the code and specs with the contract, element by element..cratis/ai/skills/cratis-screenplay-modeling-lifecycle/SKILL.md— the model-first decision procedure, when installed.
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.
- yesterday Changed 6c3130833603
- 2d ago Changed · +10 lines 8dcf7ff964da
- 5d ago Changed aaa1373c153a
- 10d ago Changed · +41 lines bd4cf1bf7376
- 15d ago Changed c23b46043ef4
- 23d ago Changed · -1 lines 5bf9790cd8f2
- 29d ago Changed · +6 lines 28e33a3d6a21
- 1mo ago Changed 0858259d7fe7
- 1mo ago Changed · +6 lines 50f28b36f470
- 1mo ago First seen · 54 lines · 59 tokens per session scan A ae39a49311b2
Slice Implementer is an agent published in the GitHub repository Cratis/AI (4 stars, last pushed today), licensed MIT. It adds 59 tokens to every session and 3,421 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.
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