developer_coding

A guided workflow for changing code in a repository using Developer Studio. It covers checking the workspace, making edits, running tests, and reviewing the result.

In plain words
What is it for?
Use it to add, fix, refactor, or test code while keeping changes, approvals, progress, and verification organized.
Why use it?
It reduces the chance of editing the wrong branch, missing relevant files, or reporting work without checking whether it passes tests.

Skill for Claude CodeCodex

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 skills/siddsachar/row-bot/developer_coding
Any agent
npx skills add siddsachar/row-bot --skill developer_coding
Clone the repo
git clone --depth 1 https://github.com/siddsachar/row-bot

Made for: Claude Code, Codex.

Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 259 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00014 $0.00259
Opus 5 $0.00007 $0.00130
Sonnet 5 $0.00003 $0.00052
Haiku 4.5 $0.00001 $0.00026

Measured yesterday against content hash 5d1339468feb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

developer_coding 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 yesterday.

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.

bundled_skills/developer_coding/SKILL.md · 31 lines

What it actually says

Developer Coding

Use this skill when the user asks Developer Studio to add, fix, refactor, or test code in a repository.

Work in this order:

  1. Confirm the active workspace, branch, approval mode, and dirty state.
  2. Create or update a concise todo plan for anything beyond a tiny edit.
  3. Read the smallest set of files that explains the behavior.
  4. Make surgical edits with Developer-native write or patch tools so the Inspector can track them.
  5. Respect execution mode. In Docker Sandbox mode, edits and commands create pending sandbox changes; import them into the real repo only after the user approves.
  6. Run focused tests first. Broaden test scope when the change touches shared behavior.
  7. Review the final diff and explain what changed, what passed, and what remains unverified.

Keep progress visible. Before a long inspection, edit, or test cluster, write a short sentence telling the user what you are doing.

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. yesterday First seen · 31 lines · 14 tokens per session scan A 5d1339468feb

Subscribe to this mod's changes

developer_coding is a skill published in the GitHub repository siddsachar/row-bot (1,474 stars, last pushed 3d ago), licensed Apache-2.0. It adds 14 tokens to every session and 259 once invoked, about $0.0001 per session on Opus 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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