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mcp/skillhub

Agent Skill

Apex Plan skill

apex-planjeremylongshore/tons-of-skills-marketplaceplugins/ai-agency/tonone/skills/apex-plan/SKILL.md

Plan and scope a project — discovery, challenge assumptions, present S/M/L options with token and cost estimates. Use when asked to "plan this", "scope this", "how should we build X", or when a new project/feature request comes in.

2.9kMIT

always on

56 tokname + description

once used

663 tokSKILL.md body

bundled files

11 KB

repo stars

2.9kGitHub

Install the Apex Plan skill

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

npx skills add https://github.com/jeremylongshore/tons-of-skills-marketplace --skill apex-plan

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git /tmp/tons-of-skills-marketplace
mkdir -p ~/.claude/skills
cp -R /tmp/tons-of-skills-marketplace/plugins/ai-agency/tonone/skills/apex-plan ~/.claude/skills/apex-plan

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.

WhenWhat loadsCost
Every sessionName and description56 tok
When the agent uses itThe SKILL.md instructions663 tok
Only if opened1 bundled files (1 KB)varies

Until it is used, apex-plan costs about 24× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 150 skills from jeremylongshore/tons-of-skills-marketplace would load 9,741 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Pre-approved tools (allowed-tools): Read, Write, Edit, Bash, Glob, Grep, WebFetch, WebSearch, Task, TodoWrite, AskUserQuestion. The agent can use these without asking while the skill is active.

Checked 2026-10-22 · method

What's inside

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

  • Apex Plan
  • Steps

More skills from jeremylongshore/tons-of-skills-marketplace

All skills in this repo
  1. agency-osjeremylongshore/tons-of-skills-marketplace

    Notion-as-source-of-truth dispatch board for running your work like an AI agency. One Tasks database is the source of truth; tasks flow Suggestion through Discussion, To-Do, In Progress, and Done with subtasks, recurring cadences, dependencies, and template subtrees. Batch execution fans approved To-Do rows out to parallel agents with per-task model selection. Use when capturing chat to Notion, running the To-Do queue, suggesting, approving, or discussing tasks, or coordinating multi-task batches. Trigger with "/agency-os" subcommands or natural-language variants ("add a suggestion: …", "let's discuss X", "run the queue").

    2.9k1142 tok idle · 1,602 in use
  2. apexjeremylongshore/tons-of-skills-marketplace

    Engineering lead — hand Apex any task and it routes internally. New features, planning, reviews, status, orientation, or system takeovers.

    2.9k31 tok idle · 210 in use
  3. apex-reconjeremylongshore/tons-of-skills-marketplace

    Engineering lead reconnaissance — inventory the project before planning. Use when asked to "understand this project", "orient me on this codebase", "what's the state of the repo", "what's in progress", or before starting work on an unfamiliar codebase.

    2.9k58 tok idle · 675 in use
  4. apex-reviewjeremylongshore/tons-of-skills-marketplace

    Cross-cutting review of recent work — catches gaps between specialists. Use when asked to "review what we built", "check the work", "pre-launch review", or after completing a significant chunk of work.

    2.9k46 tok idle · 630 in use
  5. apex-statusjeremylongshore/tons-of-skills-marketplace

    CTO-level project status from git and codebase state. Use when asked "where are we", "project status", "what's done", or at the start of a work session.

    2.9k41 tok idle · 258 in use
  6. apex-takeoverjeremylongshore/tons-of-skills-marketplace

    System takeover — take ownership of an existing codebase or inherited system. Use when "we acquired this", "previous team left", "take over this system", "inherited this codebase".

    2.9k45 tok idle · 727 in use
  7. atlasjeremylongshore/tons-of-skills-marketplace

    Knowledge engineer — architecture docs, ADRs, diagrams, changelogs, onboarding, and reports.

    2.9k22 tok idle · 219 in use
  8. atlas-adrjeremylongshore/tons-of-skills-marketplace

    Write an Architecture Decision Record — document what was decided, why, what alternatives were considered, and what trade-offs were accepted. Use when asked to "write an ADR", "document this decision", or "why did we choose X".

    2.9k51 tok idle · 1,364 in use