verify-sources

verify-sources is a skill for Claude Code from bitwize-music-studio/claude-ai-music-skills. It costs 29 tokens per session (1,269 once invoked), scanned A, original, CC0-1.0.

A guided human review step for checking the sources used in music research. It records when sources were verified and updates the related track files.

In plain words
What is it for?
It is for finding an album's tracks with unreviewed sources, walking through each one, and recording the verification outcome before generation.
Why use it?
It prevents tracks from being generated until a person confirms that the sources are real, accessible, and represented accurately.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Part of the bitwize-music plugin — 52 skills, 1 hook, 1 MCP server shipped together

Good fit It is for finding an album's tracks with unreviewed sources, walking through each one, and recording the verification outcome before generation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bitwize-music-studio/claude-ai-music-skills/verify-sources
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 bitwize-music-studio/claude-ai-music-skills --skill verify-sources
Clone the repo
git clone --depth 1 https://github.com/bitwize-music-studio/claude-ai-music-skills

Made for: Claude Code.

Or install bitwize-music, the plugin that ships this one along with the rest of its 52 skills, 1 hook, 1 MCP server.

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 verify-sources

README.md
[![agentmods](https://agentmods.dev/badge/skills/bitwize-music-studio/claude-ai-music-skills/verify-sources/github.svg)](https://agentmods.dev/skills/bitwize-music-studio/claude-ai-music-skills/verify-sources)
Your own site
<a href="https://agentmods.dev/skills/bitwize-music-studio/claude-ai-music-skills/verify-sources"><img src="https://agentmods.dev/badge/skills/bitwize-music-studio/claude-ai-music-skills/verify-sources/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 verify-sources

Your own site · 80×15
<a href="https://agentmods.dev/skills/bitwize-music-studio/claude-ai-music-skills/verify-sources"><img src="https://agentmods.dev/badge/skills/bitwize-music-studio/claude-ai-music-skills/verify-sources.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,269 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 5
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
How audits are shown
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 $0.00029 $0.01269
Opus 5 $0.00015 $0.00634
Sonnet 5 $0.00006 $0.00254
Haiku 4.5 $0.00003 $0.00127

Measured 12d ago against content hash 20c69c14818c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

verify-sources 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 12d 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.

skills/verify-sources/SKILL.md · 167 lines

How it starts

The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Your Task

Input: $ARGUMENTS (album name)

Guide the user through source verification for all tracks with pending sources in the specified album.


Source Verification Skill

You facilitate the human source verification gate — the critical checkpoint between research and generation. No track should be generated on Suno until a human has verified that all sources are real, accessible, and accurately represented.


Step 1: Find the Album

  1. Call find_album(name) — fuzzy match by name, slug, or partial
  2. If not found, MCP returns available albums

Step 2: Identify Pending Tracks

  1. Call get_pending_verifications(album_slug="{album}") — returns pending tracks for the target album
  2. If no album specified, call get_pending_verifications() for all albums

If no pending tracks:

All tracks in [album] have been verified. No action needed.

If pending tracks exist, list them:

SOURCE VERIFICATION: [Album Title]
===================================

Tracks needing verification:
  1. [track-slug] — [track-title]
  2. [track-slug] — [track-title]
  ...

Total: X tracks pending verification

Step 3: Walk Through Each Track

For each pending track:

  1. Call extract_links(album_slug, track_slug) — extracts markdown links from the track file
  2. Call extract_links(album_slug, "SOURCES.md") — get the full citation list
  3. Read RESEARCH.md (if it exists) for evidence chains, confidence levels, and claim-to-source mappings — this gives the human verifier context for what each source is supposed to support, not just the URL
  4. Present sources to the user:
TRACK: [track-title]
--------------------
Sources referenced in this track:

  1. [Source Name](URL) — [brief description of what it supports]
  2. [Source Name](URL) — [brief description]
  ...

Please verify:
  - Each URL is accessible and contains the claimed information
  - No sources are fabricated or hallucinated
  - Claims in lyrics are supported by cited sources

Type "verified" to confirm, or describe any issues.

Read the full file on GitHub · 167 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. 12d ago First seen · 167 lines · 29 tokens per session scan A 20c69c14818c

Subscribe to this mod's changes

verify-sources is a skill published in the GitHub repository bitwize-music-studio/claude-ai-music-skills (483 stars, last pushed 2d ago), licensed CC0-1.0. It adds 29 tokens to every session and 1,269 once invoked, about $0.0001 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.

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