Nexent is a zero-code platform for creating AI agents from natural-language instructions, combining tools, skills, memory, orchestration, constraints, feedback loops, and control planes. It is intended for people who need to build and deploy agents without writing orchestration code. The catalogue entries are rules and skills for working with Nexent.
Borrowing it
Nothing to install: this file belongs to ModelEngine-Group/nexent. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/ModelEngine-Group/nexent/develop/.agents/skills/nexent-backend/SKILL.mdgit clone --depth 1 https://github.com/ModelEngine-Group/nexentWrote 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/modelengine-group/nexent/nexent-backend)<a href="https://agentmods.dev/skills/modelengine-group/nexent/nexent-backend"><img src="https://agentmods.dev/badge/skills/modelengine-group/nexent/nexent-backend/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/modelengine-group/nexent/nexent-backend"><img src="https://agentmods.dev/badge/skills/modelengine-group/nexent/nexent-backend.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 | $0.00074 | $0.00369 |
| Opus 5.5 | $0.00030 | $0.00148 |
| Sonnet 5.5 | $0.00015 | $0.00074 |
| Haiku 4.5 | $0.00007 | $0.00037 |
Grade A, and why
nexent-backend 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.
What it actually says
Nexent backend changes
Repository paths below are relative to the root; reference links resolve from this skill directory.
- Identify the affected boundary and inspect existing callers and contracts. Apps handle HTTP, services orchestrate business logic, and database modules own persistence.
- Read only the references matching the work. For end-to-end changes, read each affected layer before editing.
| Work | Reference |
|---|---|
| HTTP routes, validation, identity, response/error mapping | HTTP layer |
| Business orchestration and domain errors | Services |
| Relational schema design, models, keys/indexes, queries, transactions, SQL migrations | Database |
| Environment configuration and SDK configuration parameters | Configuration |
| Threads, worker pools, blocking calls, background loops, streaming resource lifetime | Thread lifecycle |
- Preserve public contracts. Apply conventions to the changed scope; do not refactor unrelated legacy behavior merely to satisfy a rule.
- Verify affected success and failure behavior. For Python unit tests, use
nexent-python-testslinked from rootAGENTS.md. Unit-test mocks do not establish live-integration acceptance. - Report references consulted, affected contracts, and verification results. Resolve material contract conflicts using concrete evidence; routine implementation choices do not require additional permission.
What ships with it
5 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.
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 · 24 lines · 74 tokens per session scan A 56529ac66c6b
nexent-backend is a skill published in the GitHub repository ModelEngine-Group/nexent (6,064 stars, last pushed today), licensed MIT. It adds 74 tokens to every session and 369 once invoked, about $0.0003 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 2026-09-15.
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