Agent Skill

Programming skill

programmingcode-yeongyu/oh-my-openagentpackages/shared-skills/skills/programming/SKILL.md

Applies strict, modern language practice (typed errors, exhaustive match, tests that can fail) for Python, Rust, TypeScript, and Go. Use for work on .py, .rs, .ts, or .go files.

70k

always on

50 tokname + description

once used

9,728 tokSKILL.md body

bundled files

7613 scripts

repo stars

70kGitHub

Install the Programming skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/code-yeongyu/oh-my-openagent --skill programming

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/code-yeongyu/oh-my-openagent.git /tmp/oh-my-openagent
mkdir -p ~/.claude/skills
cp -R /tmp/oh-my-openagent/packages/shared-skills/skills/programming ~/.claude/skills/programming

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

When	What loads	Cost
Every session	Name and description	50 tok
When the agent uses it	The SKILL.md instructions	9,728 tok
Only if opened	76 bundled files (664 KB)	varies

Until it is used, programming costs about 27× less than the median MCP server we measured (1,362 tokens on every turn). Installing all 60 skills from code-yeongyu/oh-my-openagent would load 5,128 tokens of descriptions. Skills vs MCP study

Checks

Ships scripts the agent can run. Read them before installing.
The instructions are over 5,000 tokens, the Agent Skills specification's guideline for SKILL.md.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

Programming
PHASE 0 — LANGUAGE GATE (RUN THIS FIRST, EVERY TIME)
Shared philosophy (all three languages)
TEST DISCIPLINE
The shape of the test pyramid
Given / When / Then is mandatory
Less mock, the better
Efficient AND accurate — both, not either
Prompt tests: NEVER assert prose
Anti-patterns the skill rejects
Cross-language iron list
Modern ecosystem - canonical libraries (2026)
Modern toolchain - the only acceptable setup
CODE SMELLS — AUTOMATIC REVIEW TRIGGERS
Smell 1 — File exceeds 250 pure LOC
Smell 2 — Function with more than 3 parameters
Smell 3 — Redundant verification after a destructive action
Smell 4 — Negative-form names and conditions
LOGGING — CROSS-CUTTING RULES
DEPENDENCY UPGRADES — CROSS-CUTTING RULES
MANDATORY POST-WRITE REVIEW LOOP
Step 1 — measure
Step 2 — interpret
Step 3 — architectural self-review (always, even at 80 LOC)

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