sde

sde is a skill for Claude Code from Jaan-Mustafa/10x-Team. It costs 31 tokens per session (1,647 once invoked), scanned A, original, MIT.

A structured guide for hands-on software development work.

In plain words
What is it for?
Use it to build features, fix bugs, implement APIs, debug problems, and write production code.
Why use it?
It helps ensure that coding changes fit the existing code, clarify requirements, and are tested before completion.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the 10x-Team plugin — 13 skills, 2 commands shipped together

Good fit Use it to build features, fix bugs, implement APIs, debug problems, and write production code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jaan-mustafa/10x-team/sde
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.

Any agent
npx skills add Jaan-Mustafa/10x-Team --skill sde
Clone the repo
git clone --depth 1 https://github.com/Jaan-Mustafa/10x-Team

Made for: Claude Code.

Or install 10x-Team, the plugin that ships this one along with the rest of its 13 skills, 2 commands.

Wrote 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.

agentmods badge for sde

README.md
[![agentmods](https://agentmods.dev/badge/skills/jaan-mustafa/10x-team/sde/github.svg)](https://agentmods.dev/skills/jaan-mustafa/10x-team/sde)
Your own site
<a href="https://agentmods.dev/skills/jaan-mustafa/10x-team/sde"><img src="https://agentmods.dev/badge/skills/jaan-mustafa/10x-team/sde/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.

agentmods 80×15 button for sde

Your own site · 80×15
<a href="https://agentmods.dev/skills/jaan-mustafa/10x-team/sde"><img src="https://agentmods.dev/badge/skills/jaan-mustafa/10x-team/sde.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,647 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00031 $0.01647
Opus 5 $0.00015 $0.00823
Sonnet 5 $0.00006 $0.00329
Haiku 4.5 $0.00003 $0.00165

Measured 9d ago against content hash 3cc7ede75963, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

sde 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 9d 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.

skills/sde/SKILL.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SDE — Software Development Engineer

Help with hands-on coding — writing features, fixing bugs, debugging, and implementing working solutions.

Start by understanding the task and the existing code, then ask questions one at a time to clarify requirements. Once you understand what's needed, write clean, tested, working code.

Anti-Pattern: "Let Me Just Code This Up Real Quick"

Every coding task goes through this process. A new endpoint, a bug fix, a utility function — all of them. Jumping straight to code without reading the existing patterns leads to inconsistent, buggy implementations. The review can be fast, but you MUST understand the context first.

Checklist

You MUST complete these steps in order:

  1. Read the relevant code — understand existing implementation, patterns, dependencies
  2. Understand the task — what exactly needs to be built or fixed
  3. Ask clarifying questions — one at a time, resolve ambiguities before writing code
  4. Plan the implementation — identify files to change, approach to take
  5. Write the code — clean, consistent with existing patterns, well-tested
  6. Test the change — run existing tests, add new tests for new behavior
  7. Verify it works — sanity check the full flow

Process Flow

Read relevant code
        │
        v
Understand the task
        │
        v
Ask clarifying questions (one at a time)
        │
        v
Plan implementation (files, approach)
        │
        v
Write the code
        │
        v
Write/run tests
        │
        v
Verify it works

The Process

Reading the relevant code:

  • Read the files you'll be modifying and the files that depend on them
  • Understand the existing patterns — naming, error handling, file structure
  • Check existing tests to understand expected behavior
  • Look at similar implementations in the codebase for reference

Read the full file on GitHub · 154 lines

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. 9d ago First seen · 154 lines · 31 tokens per session scan A 3cc7ede75963

Subscribe to this mod's changes

sde is a skill published in the GitHub repository Jaan-Mustafa/10x-Team (11 stars, last pushed 2mo ago), licensed MIT. It adds 31 tokens to every session and 1,647 once invoked, about $0.0002 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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