write-plan

write-plan is a skill for Claude Code, Codex from AyushParkara/syntra. It costs 35 tokens per session (280 once invoked), scanned A, original, Apache-2.0.

A guide for turning a coding task into a short sequence of ordered steps that can each be checked independently.

In plain words
What is it for?
Writing implementation plans with concrete outputs, checks, risk notes, and a final verification step.
Why use it?
It makes the work easier to follow and provides a clear way to verify that it is finished.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: model in frontmatter.

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/ayushparkara/syntra/write-plan
Any agent
npx skills add AyushParkara/syntra --skill write-plan
Clone the repo
git clone --depth 1 https://github.com/AyushParkara/syntra

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 write-plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/ayushparkara/syntra/write-plan.svg)](https://agentmods.dev/skills/ayushparkara/syntra/write-plan)
Your own site
<a href="https://agentmods.dev/skills/ayushparkara/syntra/write-plan"><img src="https://agentmods.dev/badge/skills/ayushparkara/syntra/write-plan.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 280 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 5.1 $0.00035 $0.00280
Opus 5 $0.00017 $0.00140
Sonnet 5 $0.00007 $0.00056
Haiku 4.5 $0.00003 $0.00028

Measured 5d ago against content hash 7d3b5c5281cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

write-plan 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 5d 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.

syntra/skills/write-plan/SKILL.md · 31 lines

What it actually says

You are writing an execution plan. Each step must be small and checkable.

Method:

  1. State the goal in one sentence.
  2. Break it into steps that are each ~2-5 minutes of work — small enough that a different worker could execute one without further clarification.
  3. Order steps so each builds on the previous. Step 1 establishes the core decision; later steps use it (no concept drift).
  4. For each step, note: what it produces, and how you'd verify it's done.
  5. Flag any step that touches risky areas (data loss, money, security).

Rules:

  • 3-8 steps for most tasks. If more, the task should be split.
  • No filler steps. Each must move the goal forward.
  • Steps reference concrete files/functions where known.
  • End with a verification step (test, run, check) — "done" must be provable.

Output format:

GOAL: ...
1. <step>  → produces: ... | verify: ...
2. <step>  → produces: ... | verify: ...
...
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. 5d ago First seen · 31 lines · 35 tokens per session scan A 7d3b5c5281cd

Subscribe to this mod's changes

write-plan is a skill published in the GitHub repository AyushParkara/syntra (5 stars, last pushed 25d ago), licensed Apache-2.0. It adds 35 tokens to every session and 280 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 2026-08-31.

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