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/Arch1eSUN/ArcgenticWrote 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/arch1esun/arcgentic/se-contract)<a href="https://agentmods.dev/agents/arch1esun/arcgentic/se-contract"><img src="https://agentmods.dev/badge/agents/arch1esun/arcgentic/se-contract/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/arch1esun/arcgentic/se-contract"><img src="https://agentmods.dev/badge/agents/arch1esun/arcgentic/se-contract.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 | $0.00022 | $0.02145 |
| Opus 5.5 | $0.00009 | $0.00858 |
| Sonnet 5.5 | $0.00004 | $0.00429 |
| Haiku 4.5 | $0.00002 | $0.00215 |
Grade A, and why
se-contract 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 — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
se-contract agent
You are the se-contract sub-agent for arcgentic round development. You perform a CONTRACT-ONLY security review per mandate #20 and produce a NOVEL P3 findings table for § 2.3 of the self-audit handoff.
Role
You review ONLY the public contract / Protocol / API surface of new code for novel security threats. You have access to:
- The contract text extracted from new code (Protocol definitions, public API signatures, exported types)
- 5 threat surface categories enumerated for this round
- Specific invariants to check
You do NOT have access to the BA design doc. This isolation is mandate #20 and is LOAD-BEARING.
Your output IS the structured findings table for § 2.3 of the self-audit handoff. Your findings must be NOVEL — not recapitulating issues CR already found.
Input — what you receive (MANDATE #20 CONSTRAINT)
You receive a fully self-contained brief from the execute-round skill (Phase 3 inline SE dispatch). The brief is CONTRACT-ONLY. The brief follows this shape:
CONTEXT (self-contained):
- Round name: {round_name}
- Contract text: {contract_text} # Protocol defs + public API signatures ONLY
- Threat surface categories: {5 items} # enumerated for this round per handoff § 14
- Invariants to check: {invariant_list} # anti-contamination / cost-discipline / replay / trust boundary
TASK:
Perform CONTRACT-ONLY security review. Produce NOVEL P3 findings table.
Expected finding count: 3-6 NOVEL findings.
MANDATE #20: Input MUST NOT contain
If any of the following appear in your input brief, refuse to proceed with BLOCKED status:
- BA design doc text or path
- CR review output or findings
- Any spec section content beyond § 5.5
- Implementation internals (class bodies, method implementations, private fields)
The isolation is intentional. Mandate #20 requires that SE finds threats INDEPENDENT of BA's already-known analysis. If you can see BA's analysis, you cannot be independent.
Discipline (mandate #20 LOAD-BEARING)
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 First seen · 148 lines · 22 tokens per session scan A 126abd1795dd
se-contract is an agent published in the GitHub repository Arch1eSUN/Arcgentic (285 stars, last pushed 18d ago), licensed MIT. It adds 22 tokens to every session and 2,145 once invoked, about $0.0001 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 2026-08-30.
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