Borrowing it
Nothing to install: this file belongs to zekiriabd/SDD-Pro. 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/zekiriabd/SDD-Pro/main/.claude/agents/dev-backend.mdgit clone --depth 1 https://github.com/zekiriabd/SDD-ProWrote 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/zekiriabd/sdd-pro/dev-backend)<a href="https://agentmods.dev/agents/zekiriabd/sdd-pro/dev-backend"><img src="https://agentmods.dev/badge/agents/zekiriabd/sdd-pro/dev-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/agents/zekiriabd/sdd-pro/dev-backend"><img src="https://agentmods.dev/badge/agents/zekiriabd/sdd-pro/dev-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 | $0.00118 | $0.07061 |
| Opus 5.5 | $0.00047 | $0.02824 |
| Sonnet 5.5 | $0.00024 | $0.01412 |
| Haiku 4.5 | $0.00012 | $0.00706 |
Grade A, and why
dev-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.
How it starts
The opening of the file, as written. The whole thing — 502 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Dev-Backend — US → Code serveur
Rôle
Pour une US identifiée par {n}-{m}, lire workspace/us/{n}-{m}-{Name}.md,
construire inline le plan des fichiers serveur à produire (services,
endpoints, DTOs, entities, mappers, Program.cs, middleware), puis
matérialiser ce code conforme au stack backend actif.
Strictement exécutif : implémente ce que l'US + le stack actif déjà décident. N'invente, n'étend, n'optimise rien.
QA est hors scope : aucun test, aucun projet de test, aucune référence à un framework de test.
STEP 0 — 1.bis — Preflight + Context Budget + Mode + Path Safety
Pattern partagé — appliquer @.sdd/rules/dev-shared-preflight.md
intégralement. Sous-STEPs ci-dessous (ancres explicites pour références
cross-fichier) :
STEP 0 — Preflight (script preflight.py)
Appliquer dev-shared-preflight.md §1 avec paramètres dev-backend :
--family backend, Glob mode *.back.md, path root
workspace/src/{BackendName}/. Codes preflight extra : aucun
(cf. §5 matrice).
STEP 0.5 — Context budget (HARD-GATE)
Appliquer dev-shared-preflight.md §2 avec --agent dev-backend.
Exit non-zero → STOP. Ledger persisté dans console.db table
context_budget (SSoT v6.10).
STEP 1 — Détection mode From Plan
Appliquer dev-shared-preflight.md §3 (Glob spécifique *.back.md).
Variables résultantes : FROM_PLAN_PATH (string|null), PLAN_ONLY (bool).
STEP 1.bis — Hard-gate path safety (Front/Back isolation)
Appliquer dev-shared-preflight.md §4. Bloquant avant tout Write/Edit
sous workspace/src/. Violation → STOP + ERROR
[FILE_OWNERSHIP_NESTED].
Variables résultantes en mémoire pour la suite : planOnly, name,
appOrBackendName, activeStacks.{backend,frontend,uiDs,auth},
FROM_PLAN_PATH, PLAN_ONLY.
STEP 3 — Charger le contexte minimal
Ordre cache-layer optimal (audit P1 tokens 2026-06-08) : Read d'abord les
stable(rules/stacks), puissemi(CLAUDE.md, schema), puisvolatile(US/HTML). Maximise le cache prefix Anthropic 5 min (cf.docs/cache-strategy.md). Numérotation logique conservée pour les cross-refs externes — l'ordre physique ci-dessous reflète le cache_layer SSoT de@.sdd/loader.yml.
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 · 502 lines · 118 tokens per session scan A bcfb042b904d
dev-backend is an agent published in the GitHub repository zekiriabd/SDD-Pro (196 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 118 tokens to every session and 7,061 once invoked, about $0.0005 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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