code-examples-sync

code-examples-sync is a skill for Codex from PracticalSwan/agent-skills. It costs 36 tokens per session (912 once invoked), scanned A, original, MIT.

A skill for keeping code examples in documentation aligned with the actual codebase.

In plain words
What is it for?
It helps find the canonical implementation, update affected snippets in documentation and READMEs, and check their syntax, imports, and expected results.
Why use it?
It prevents documentation from showing outdated function signatures, imports, APIs, or framework patterns.

Skill for Codex

Written for Codex: reads $CODEX_HOME. Also seen: mentions subagents; mentions Claude Code; mentions Codex.

Good fit It helps find the canonical implementation, update affected snippets in documentation and READMEs, and check their syntax, imports, and expected results.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/practicalswan/agent-skills/code-examples-sync
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 PracticalSwan/agent-skills --skill code-examples-sync
Clone the repo
git clone --depth 1 https://github.com/PracticalSwan/agent-skills

Made for: 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 code-examples-sync

README.md
[![agentmods](https://agentmods.dev/badge/skills/practicalswan/agent-skills/code-examples-sync/github.svg)](https://agentmods.dev/skills/practicalswan/agent-skills/code-examples-sync)
Your own site
<a href="https://agentmods.dev/skills/practicalswan/agent-skills/code-examples-sync"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/code-examples-sync/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 code-examples-sync

Your own site · 80×15
<a href="https://agentmods.dev/skills/practicalswan/agent-skills/code-examples-sync"><img src="https://agentmods.dev/badge/skills/practicalswan/agent-skills/code-examples-sync.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 912 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 $0.00036 $0.00912
Opus 5.5 $0.00014 $0.00365
Sonnet 5.5 $0.00007 $0.00182
Haiku 4.5 $0.00004 $0.00091

Measured 1mo ago against content hash 10c67763f7e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-examples-sync 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/example-sync-check.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

code-examples-sync/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Example Synchronization

Use this skill when docs contain code snippets that are likely to drift from the real implementation.

  • Leverage native parallel subagent dispatch and 200k+ context windows where available.

Activation Conditions

Use symptom -> action triggers: when one matches, apply this skill and verify with the protocol below.

  • Function signatures changed
  • Imports or package names changed
  • Request or response contracts changed
  • Framework guidance or recommended patterns changed
  • A doc snippet compiles conceptually but no longer matches the codebase

Workflow

  1. Find the canonical implementation first.
  2. Update every affected snippet in docs, examples, and READMEs.
  3. Verify syntax, imports, and expected outputs.
  4. Note any intentional divergence, such as simplified tutorial snippets.

Cross-Client Portability

This skill is written to stay usable across GitHub Copilot, Claude Code, and Codex.

  • GitHub Copilot: keep the folder in a Copilot-visible skill path or wrap the workflow in project instructions when folder discovery is unavailable.
  • Claude Code: keep the folder in a local skills directory or a compatible plugin source.
  • Codex: install or sync the folder into $CODEX_HOME/skills/code-examples-sync and restart Codex after major changes.

MCP Availability And Fallback

Preferred MCP Server: None required

  • Fallback prompt: "Use the Code Example Synchronization skill without MCP. Rely on its local instructions, bundled resources, standard shell or editor tools, and direct verification. Show the evidence used before concluding."
  • Do not claim an MCP operation was used when the active host does not expose it.
  • Treat local files, tests, rendered outputs, logs, or screenshots as the fallback evidence path.

Anti-Patterns

  • Starting work before the plan or gate is clear: Execution drifts when success criteria are implied instead of explicit.
  • Treating verification as optional cleanup: The last mile is where regressions and missing updates are usually hiding.
  • Mixing planning, implementation, and release work in one jump: You lose the causal chain that explains why a change is safe.

Read the full file on GitHub · 95 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 Changed 10c67763f7e0
  2. 1mo ago Changed a1b68a4ac33e
  3. 1mo ago Changed 40b1af0ef7d6
  4. 1mo ago First seen · 95 lines · 36 tokens per session scan A 34b1178ff78e

Subscribe to this mod's changes

code-examples-sync is a skill published in the GitHub repository PracticalSwan/agent-skills (21 stars, last pushed 1mo ago), licensed MIT. It adds 36 tokens to every session and 912 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 2026-08-30.