Runs the session startup procedure - verifies setup, loads config and state, checks skill models, and reports project status.

CC0-1.0Auto-check: notesAgent Workflows

Install Session Start

skills CLI
$ npx skills add bitwize-music-studio/claude-ai-music-skills --skill session-start -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install bitwize-music-studio/claude-ai-music-skills session-start --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/bitwize-music-studio/claude-ai-music-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/session-start .claude/skills/session-start && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
session-start
GitHub stars
538
Token cost
~2k tokens
SKILL.md length
825 words
Files
1
Skills in repo
51
Repo updated
First seen
Licence
CC0-1.0

At a glance

Runs the session startup procedure - verifies setup, loads config and state, checks skill models, and reports project status.

  • Works in 10 steps: Verify Setup → 5: Health Check → Load Config → …
  • Agent Workflows work in your project
  • SKILL.md covers Your Task, Step 1: Verify Setup, Step 1.5: Health Check and Step 2: Load Config, plus 9 more sections
  • Calls python3 and python

What it does

Session Start is an agent skill from bitwize-music-studio/claude-ai-music-skills. Runs the session startup procedure - verifies setup, loads config and state, checks skill models, and reports project status. Use at the beginning of a fresh session.

Its SKILL.md is about 2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows. It works with Model Context Protocol. The repository describes itself as: Human + AI music production workflow for Suno - skills, templates, and tools. The licence is CC0-1.0.

When your agent uses it

  • Agent Workflows work in your project

Example prompts

  • “/session-start”

Requirements

  • Python 3
  • Pre-approved tools (allowed-tools): Read, Bash, Glob, Grep, WebSearch, WebFetch, bitwize-music-mcp

Workflow steps

10 steps, taken from the step headings in SKILL.md.

  1. Verify Setup
  2. 5: Health Check
  3. Load Config
  4. Load Overrides
  5. Load State Cache
  6. 5: Check for Plugin Upgrades
  7. (Removed)
  8. Report From State Cache
  9. Show Contextual Tips
  10. Ask

What it can do on your machine

Read from SKILL.md and the folder at commit 58f32c2. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Bash
    • Glob
    • Grep
    • WebSearch
    • WebFetch
    • bitwize-music-mcp

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • python3
    • python

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Session Start loads about 2k tokens when it runs. Until then it costs about 45 tokens; SKILL.md has 825 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~45
When it runs · the whole SKILL.md, loaded when a task matches
~2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Bash, Glob, Grep, WebSearch, WebFetch, bitwize-music-mcp

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from bitwize-music-studio/claude-ai-music-skills at commit 58f32c2, republished under its CC0-1.0 licence (© bitwize-music-studio). 825 words, ~1,966 tokens.

Download SKILL.mdSave it as .claude/skills/session-start/SKILL.md (or your agent's skills folder).
name
session-start
description
Runs the session startup procedure - verifies setup, loads config and state, checks skill models, and reports project status. Use at the beginning of a fresh session.
allowed-tools
Read, Bash, Glob, Grep, WebSearch, WebFetch, bitwize-music-mcp
model
sonnet
effort
low

Your Task

Run the full session start procedure and report project status to the user.


Session Start Skill

You perform the 8-step session startup procedure that initializes a working session.


Step 1: Verify Setup

Quick dependency check:

bash
~/.bitwize-music/venv/bin/python3 -c "import mcp.server.mcpserver" 2>/dev/null || ~/.bitwize-music/venv/bin/python3 -c "import mcp.server.fastmcp" 2>/dev/null && echo "MCP ready" || echo "MCP unusable"        # macOS/Linux/WSL
~/.bitwize-music/venv/Scripts/python.exe -c "import mcp.server.mcpserver" 2>/dev/null || ~/.bitwize-music/venv/Scripts/python.exe -c "import mcp.server.fastmcp" 2>/dev/null && echo "MCP ready" || echo "MCP unusable" # Windows (Git Bash; cmd/PowerShell: %USERPROFILE%\.bitwize-music\venv\Scripts\python.exe)
  • If MCP unusable: Stop immediately and suggest: /bitwize-music:setup mcp (the SDK is missing or predates 1.28.1). Probe both server modules, never bare import mcp: 2.x serves MCPServer from mcp.server.mcpserver and 1.x serves FastMCP from mcp.server.fastmcp, and the server accepts either — but a bare import mcp succeeds even when neither module is present, reporting healthy on an install the server cannot boot on
  • If config missing (~/.bitwize-music/config.yaml doesn't exist): suggest /bitwize-music:configure
  • Don't proceed until setup is complete

Step 1.5: Health Check

Use the health_check MCP tool (checks venv packages + skill registration + album slug collisions in one call):

Venv results (from result.venv):

  • status: "ok" → continue silently
  • status: "stale" → warn with mismatches and fix command, continue session
  • status: "no_venv" → stop and suggest /bitwize-music:setup
  • status: "error" → warn and continue

Skill registration results (from result.skills):

  • status: "ok" → continue silently
  • status: "stale" → warn: list missing and ghost skill names, show fix message
  • status: "no_cache" → warn that plugin cache not found, continue

Album slug collision results (from result.collisions):

  • status: "ok" → continue silently
  • status: "collision" → warn: list each slug with its kept and shadowed genres, show the fix (rename one album with /bitwize-music:rename or move its directory, then run rebuild_state), continue session

Step 2: Load Config

Read ~/.bitwize-music/config.yaml.

If missing, tell user to run /bitwize-music:configure.

Step 3: Load Overrides

Read paths.overrides from config (default: {content_root}/overrides):

  • Check for {overrides}/CLAUDE.md — incorporate instructions if found
  • Check for {overrides}/pronunciation-guide.md — note if found
  • Skip silently if missing (overrides are optional)

Step 4: Load State Cache

Read ~/.bitwize-music/cache/state.json:

  • If missing, corrupted, schema mismatch, or config changed: rebuild via MCP
    rebuild_state()

Step 4.5: Check for Plugin Upgrades

Call the get_pending_migrations MCP tool. It compares the installed plugin version against last_migrated_version in state (the last version whose migrations were processed — distinct from plugin_version, which only records the installed version for display) and returns the pending notes already parsed and sorted.

  1. If pending is empty (reason: "current", or reason: "unknown" when the installed version can't be read from plugin.json): No action needed.
  2. If pending is non-empty (reason: "upgrade" or "untracked"): For each migration, process its actions in order:
    • auto: Execute silently (run check first — skip if it returns 0)
    • action: Show description, ask the user to confirm before executing
    • info: Display to the user
    • manual: Show the instruction to the user
  3. After processing all notes, call acknowledge_migrations (no argument acknowledges everything up to the installed version) so the same notes do not surface again next session.
  4. Report: "Upgraded to Y" with a summary of the actions taken.

reason: "untracked" means the state predates migration tracking; the full backlog up to the installed version is surfaced once, then cleared by acknowledge_migrations. Do NOT just rebuild state to clear migrations — a rebuild preserves the pending status; only acknowledge_migrations records that you processed them.

Show full SKILL.md (331 more words)Show less

Step 5: (Removed)

Skill model checking is no longer part of session start. Skills use tier aliases (opus/sonnet/haiku) that auto-track the frontier model, and the test suite (/bitwize-music:test) enforces model/effort hygiene — so no manual model checking is needed when new Claude models are released.

Step 6: Report From State Cache

Using data from state.json, report:

Album Ideas

From state.ideas.counts — show count by status (Pending, In Progress, etc.)

In-Progress Albums

Filter state.albums for status: "In Progress", "Research Complete", "Complete"

For each, show:

  • Album name, genre, status
  • Track progress (completed/total)
Pending Source Verifications

From state.albums — find tracks where sources_verified is "Pending"

If any found, warn: "These tracks have unverified sources — generation is blocked until verified."

Last Session Context

From state.session:

  • Last album worked on
  • Last phase
  • Pending actions

Step 7: Show Contextual Tips

Based on state, show ONE relevant tip:

ConditionTip
No albums exist"Try /bitwize-music:tutorial to create your first album"
Ideas exist but no albums"You have album ideas! Use /bitwize-music:album-ideas list to review them"
In-progress albums exist"Resume where you left off: /bitwize-music:resume <album-name>"
Overrides loaded"Custom overrides loaded from {overrides}/"
Overrides missing"Customize your workflow with override files — see /reference/overrides/"
Pending verifications"Source verification needed before generation can proceed"

Also show one random general tip (rotate through these):

  • "Ask 'what should I do next?' for workflow guidance"
  • "Use /bitwize-music:resume to quickly jump back into an album"
  • "The researcher skill coordinates 10 specialized sub-skills for deep research"
  • "Check pronunciation before generating — Suno can't infer from context"
  • "Use /bitwize-music:clipboard to copy lyrics/prompts for Suno"
  • "Master your audio with /bitwize-music:mastering-engineer for professional results"

Step 8: Ask

End with: "What would you like to work on?"


Report Format

SESSION START
=============

Setup: MCP ready, config loaded
Health: [venv ok, skills ok, no collisions | warnings listed]
Overrides: [loaded from {path} | not found (optional)]
State: [loaded | rebuilt | error]

ALBUM IDEAS
  Pending: X | In Progress: Y

IN-PROGRESS ALBUMS
  [album-name] (genre) - Status [X/Y tracks]
  [album-name] (genre) - Status [X/Y tracks]

PENDING VERIFICATIONS
  [album-name]: track-01, track-05

LAST SESSION
  Album: [name] | Phase: [phase]
  Pending: [actions]

TIP: [contextual tip]

What would you like to work on?

Remember

  1. Don't skip steps — Each step matters for session integrity
  2. Rebuild state if needed — Stale state leads to wrong recommendations
  3. Be concise — This is a status report, not a conversation
  4. Warn about verifications — Unverified sources block generation
  5. One tip, not five — Pick the most relevant tip for the current state

© bitwize-music-studio, CC0-1.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/session-start of bitwize-music-studio/claude-ai-music-skills.

Open the folder on GitHubat commit 58f32c2

Compare with similar skills

Session Start next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Session Start compared with similar skills
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MCP Server BuildershareAI-lab/learn-claude-code78k5 repos~1.2kAutomated safety check: PassMIT
MCP Integration for Pluginsanthropics/claude-plugins-official38k11 repos~3.1kAutomated safety check: PassApache-2.0
Fastmcp Client CLIPrefectHQ/fastmcp28k1 repos~823Automated safety check: PassApache-2.0
MemPalace Memory SearchMemPalace/mempalace59k—~1.4kAutomated safety check: PassMIT

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Categories

Questions about Session Start

What does Session Start do?

Runs the session startup procedure - verifies setup, loads config and state, checks skill models, and reports project status. Session Start is an agent skill from bitwize-music-studio/claude-ai-music-skills. Runs the session startup procedure - verifies setup, loads config and state, checks skill models, and reports project status.

When should I use Session Start?

Session Start fits situations like: agent Workflows work in your project.

How do I install Session Start in Claude Code?

Run `npx skills add bitwize-music-studio/claude-ai-music-skills --skill session-start -a claude-code`. Or copy the skill folder (skills/session-start in bitwize-music-studio/claude-ai-music-skills) into .claude/skills/session-start in your project. Claude Code loads it when a task matches its description.

How do I install Session Start in Codex?

Run `npx skills add bitwize-music-studio/claude-ai-music-skills --skill session-start -a codex`. Or copy the skill folder (skills/session-start in bitwize-music-studio/claude-ai-music-skills) into .agents/skills/session-start in your project. Codex loads it when a task matches its description.

Can I use Session Start in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add bitwize-music-studio/claude-ai-music-skills --skill session-start -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/session-start, .gemini/skills/session-start, .github/skills/session-start and .opencode/skills/session-start in your project.

What does Session Start need to run?

Going by SKILL.md and its folder, Session Start needs the command-line tools its instructions call (python3 and python). Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Bash, Glob, Grep, WebSearch, WebFetch, bitwize-music-mcp.

Does Session Start access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Session Start safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Session Start use?

Session Start is published under the CC0-1.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Session Start use?

About 2k tokens (SKILL.md is roughly 7.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Session Start?

Skills that share tags, products or a category with Session Start: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MCP Integration for Plugins (anthropics/claude-plugins-official, 38k stars) and Fastmcp Client CLI (PrefectHQ/fastmcp, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Session Start?

bitwize-music-studio (a GitHub organization) maintains it in bitwize-music-studio/claude-ai-music-skills, which has 538 GitHub stars. The repository holds 51 skills in this directory. The repository was last updated on October 7, 2026.

Source: bitwize-music-studio/claude-ai-music-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.