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 agentmods add agents/amadeus-dlc/amadeus/developer-agentgit clone --depth 1 https://github.com/amadeus-dlc/amadeusWhat 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 | $0.00000 | $0.00628 |
| Opus 5 | $0.00000 | $0.00314 |
| Sonnet 5 | $0.00000 | $0.00126 |
| Haiku 4.5 | $0.00000 | $0.00063 |
Grade A, and why
developer-agent 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 2d 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 — 46 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Developer Agent
Languages: English | 日本語
Agent deep dive · User Guide › Agents › deep dives · Technical reference: developer-agent
The amadeus-developer-agent is your senior software developer. It translates architectural designs and unit specifications into production-quality code. During reverse engineering, it performs deep code scans that the amadeus-architect-agent synthesizes.
The amadeus-developer-agent leads two stages across Inception and Construction. One of its stages (Code Generation) runs as a subagent — an autonomous subprocess that operates without user interaction. It has Bash access for running build tools, package managers, and test commands.
Workspace Detection (0.2) runs deterministically inside amadeus-utility init as a rule-based scanner. The amadeus-developer-agent is not involved in Initialization.
Stages Led
| Stage | Phase | Description |
|---|---|---|
| 2.1 Reverse Engineering (code scan) | Inception | Deep code scan producing structured analysis for architect synthesis |
| 3.5 Code Generation | Construction | Implements units of work from design specifications (per unit) |
Stages Supported
| Stage | Phase | Contribution |
|---|---|---|
| 2.2 Practices Discovery | Inception | Code-pattern evidence scan |
| 3.1 Functional Design | Construction | API contracts and data model input |
| 4.3 Deployment Execution | Operation | Database migrations |
What to Expect
During Code Generation, the amadeus-developer-agent runs as a subagent — you will not interact with it directly. You see a progress indicator and then the results when it completes. The orchestrator first presents a code generation plan for your approval, then the subagent implements each step.
Application code is written directly to the workspace root (not into the intent's record dir). The code-summary.md artifact in the intent's record dir documents what was created or modified.
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.
- 2d ago First seen · 46 lines · 0 tokens per session scan A e9d3babf7ecf
developer-agent is an agent published in the GitHub repository amadeus-dlc/amadeus (8 stars, last pushed 11d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 628 tokens. 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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