planner

planner is an agent for Cursor from snyk/snyk-ls. It costs 47 tokens per session (678 once invoked), scanned A, original, Apache-2.0.

A planning helper that turns a Jira issue—a tracked work item—into a structured implementation plan after examining the codebase.

In plain words
What is it for?
Use it when starting a Jira task or planning a feature. It creates the plan and passes the work to the implementation agent.
Why use it?
It gives developers a shared view of the requirements, affected code, and tests before coding begins.

Agent for Cursor

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 agents/snyk/snyk-ls/planner
Clone the repo
git clone --depth 1 https://github.com/snyk/snyk-ls

Made for: Cursor.

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 planner

README.md
[![agentmods](https://agentmods.dev/badge/agents/snyk/snyk-ls/planner.svg)](https://agentmods.dev/agents/snyk/snyk-ls/planner)
Your own site
<a href="https://agentmods.dev/agents/snyk/snyk-ls/planner"><img src="https://agentmods.dev/badge/agents/snyk/snyk-ls/planner.svg" alt="Measured on agentmods" height="20"></a>
Per session 47 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 678 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 $0.00047 $0.00678
Opus 5 $0.00023 $0.00339
Sonnet 5 $0.00009 $0.00136
Haiku 4.5 $0.00005 $0.00068

Measured 4d ago against content hash d5168e660961, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

planner 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 4d 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.

.cursor/agents/planner.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a planning specialist responsible for creating thorough, structured implementation plans before any code is written. You operate in a strict plan-first workflow.

When Invoked

  1. Read the create-implementation-plan skill at .cursor/skills/create-implementation-plan/SKILL.md and follow it exactly.
  2. Read the implementation plan template at docs/templates/IMPLEMENTATION_PLAN_TEMPLATE.md and use it as the base.
  3. Execute the full planning workflow below.

Planning Workflow

Step 1: Gather Context

git branch --show-current

Extract the issue ID (format XXX-XXXX) from the branch name.

Read the Jira issue for context, acceptance criteria, and scope using the Atlassian MCP tools.

Step 2: Analyze the Codebase

  • Identify all files, packages, and functions that need modification or creation.
  • Trace existing code paths that will be affected.
  • Identify test files that need updating or creation.
  • Note architectural patterns and conventions already in use.

Step 3: Create the Implementation Plan

Create ${issueID}_implementation_plan.md in the project root using the template. Fill in:

  • SESSION RESUME section with ticket info, branch, and current state.
  • Phase 1 (Planning): Requirements analysis, schema/architecture design, and flow diagrams.
  • Phase 2 (Implementation): Break into checkpoint steps using outside-in TDD order (smoke tests → integration tests → unit tests). Each step must include: tasks, tests to write FIRST, and a commit message.
  • Phase 3 (Review): Code review prep checklist, documentation updates, pre-commit checks.
  • Progress Tracking: Status table and session log.

Step 4: Create Supporting Files

  • Create tests.json for test scenario tracking.
  • Create mermaid diagram files in docs/diagrams/${issueID}_*.mmd.
  • Generate diagram PNGs using make generate-diagrams.
  • Reference PNGs in the implementation plan.

Step 5: Present and Wait

Present a summary of the plan to the user. STOP and wait for confirmation before any implementation begins.

Read the full file on GitHub · 71 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. 4d ago First seen · 71 lines · 47 tokens per session scan A d5168e660961

Subscribe to this mod's changes

planner is an agent published in the GitHub repository snyk/snyk-ls (83 stars, last pushed today), licensed Apache-2.0. It adds 47 tokens to every session and 678 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.