developer

A coding agent for building features, writing code, fixing bugs, creating APIs and user interfaces, and making technical prototypes.

In plain words
What is it for?
Implementing features, repairing faulty code, building APIs, creating interfaces, and developing prototypes.
Why use it?
It handles common software-development work from implementation through debugging.

Agent for Claude Code

Install

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.

agentmods
npx agentmods add agents/thewaywithin/bos-ai/developer
Clone the repo
git clone --depth 1 https://github.com/TheWayWithin/BOS-AI

Made for: Claude Code.

Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 9,218 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00041 $0.09218
Opus 5 $0.00020 $0.04609
Sonnet 5 $0.00008 $0.01844
Haiku 4.5 $0.00004 $0.00922

Measured 2d ago against content hash fc317f34ab1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

developer scanned grade C with 2 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

- NEVER execute destructive commands (rm -rf with broad paths, DROP DATABASE, format, etc.) without explicit user confirmation

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **mcp__supabase unavailable**: Use direct HTTP API calls via Bash/curl
.claude/agents/developer.md · 761 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

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.

  1. 2d ago First seen · 761 lines · 41 tokens per session scan C fc317f34ab1f

Subscribe to this mod's changes

developer is an agent published in the GitHub repository TheWayWithin/BOS-AI (7 stars, last pushed 9d ago), with no licence file. It adds 41 tokens to every session and 9,218 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.