source-driven-development

source-driven-development is a skill for Claude Code, Codex from sivaguru-2113/Agent-persona. It costs 20 tokens per session (138 once invoked), scanned A, original, no licence file.

A development approach that bases implementation decisions on trusted code sources, official documentation, and checked application interfaces.

In plain words
What is it for?
Use it when choosing APIs, integrating libraries, or implementing behavior that must match authoritative technical sources.
Why use it?
It reduces the risk of building against incorrect assumptions or outdated and unverified information.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it when choosing APIs, integrating libraries, or implementing behavior that must match authoritative technical sources.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sivaguru-2113/agent-persona/source-driven-development
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 sivaguru-2113/Agent-persona --skill source-driven-development
Clone the repo
git clone --depth 1 https://github.com/sivaguru-2113/Agent-persona

Made for: Claude Code, Codex.

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 source-driven-development

README.md
[![agentmods](https://agentmods.dev/badge/skills/sivaguru-2113/agent-persona/source-driven-development/github.svg)](https://agentmods.dev/skills/sivaguru-2113/agent-persona/source-driven-development)
Your own site
<a href="https://agentmods.dev/skills/sivaguru-2113/agent-persona/source-driven-development"><img src="https://agentmods.dev/badge/skills/sivaguru-2113/agent-persona/source-driven-development/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 source-driven-development

Your own site · 80×15
<a href="https://agentmods.dev/skills/sivaguru-2113/agent-persona/source-driven-development"><img src="https://agentmods.dev/badge/skills/sivaguru-2113/agent-persona/source-driven-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 138 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 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 5.1 $0.00020 $0.00138
Opus 5.5 $0.00008 $0.00055
Sonnet 5.5 $0.00004 $0.00028
Haiku 4.5 $0.00002 $0.00014

Measured 1mo ago against content hash 4ee6ae0ad320, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

source-driven-development 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.

skills/engineering/source-driven-development/SKILL.md · 17 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 1mo ago First seen · 17 lines · 20 tokens per session scan A 4ee6ae0ad320

Subscribe to this mod's changes

source-driven-development is a skill published in the GitHub repository sivaguru-2113/Agent-persona (1 stars, last pushed 2mo ago), with no licence file. It adds 20 tokens to every session and 138 once invoked, about $0.0001 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 2026-08-31.

Related

Other skills, from other repositories

spec-kitty-charter-doctrine

Run charter interview, generation, context, and sync workflows for project governance in Spec Kitty 3.x. Access doctrine artifacts programmatically via DoctrineService. Resolve agent profiles. Load action-scoped governance context iteratively, not all at once. Triggers: "interview for charter", "generate charter"…

Priivacy-ai/spec-kitty · 135 tokens

chisle-audit

One-shot efficiency audit of a file, diff, or whole repo across BOTH axes at once: over-engineered code (reinvented stdlib, needless abstractions, speculative config) AND bloated prose (verbose comments, padded docstrings, redundant doc sections). Neither a pure code-minimizer nor a pure prose compressor does both in…

JayPokale/Chisle · 130 tokens

mongodb-query-optimizer

Help with MongoDB query optimization and indexing. Use only when the user asks for optimization or performance: "How do I optimize this query?", "How do I index this?", "Why is this query slow?", "Can you fix my slow queries?", "What are the slow queries on my cluster?", etc. Do not invoke for general MongoDB query…

fcakyon/claude-codex-settings · 98 tokens

polar-local-environment

This skill should be used when setting up or managing Polar local development environment with Docker.

fcakyon/claude-codex-settings · 22 tokens

execute

Execute an approved Maestro implementation plan using the shared session-state contract.

josstei/maestro-orchestrate · 14 tokens

neo4j-modeling-skill

Design, review, and refactor Neo4j graph data models. Use when choosing node labels vs relationship types vs properties, migrating relational/document schemas to graph, detecting anti-patterns (generic labels, supernodes, missing constraints), designing intermediate nodes for n-ary relationships, enforcing schema with…

neo4j-contrib/neo4j-skills · 152 tokens