tidewave

tidewave is an agent for Claude Code from vinnie357/claude-skills. It costs 18 tokens per session (583 once invoked), scanned A, original, MIT.

A runtime debugging agent for Phoenix, the Elixir web framework, using Tidewave tools to inspect a running application.

In plain words
What is it for?
Use it to inspect schemas, source locations, documentation, logs, database results, and evaluated Elixir code.
Why use it?
It helps you investigate the live application instead of relying only on what can be inferred from source files.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the elixir plugin — 9 skills, 1 agent shipped together

Good fit Use it to inspect schemas, source locations, documentation, logs, database results, and evaluated Elixir code.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/vinnie357/claude-skills/tidewave
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.

Clone the repo
git clone --depth 1 https://github.com/vinnie357/claude-skills

Made for: Claude Code.

Or install elixir, the plugin that ships this one along with the rest of its 9 skills, 1 agent.

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 tidewave

README.md
[![agentmods](https://agentmods.dev/badge/agents/vinnie357/claude-skills/tidewave/github.svg)](https://agentmods.dev/agents/vinnie357/claude-skills/tidewave)
Your own site
<a href="https://agentmods.dev/agents/vinnie357/claude-skills/tidewave"><img src="https://agentmods.dev/badge/agents/vinnie357/claude-skills/tidewave/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 tidewave

Your own site · 80×15
<a href="https://agentmods.dev/agents/vinnie357/claude-skills/tidewave"><img src="https://agentmods.dev/badge/agents/vinnie357/claude-skills/tidewave.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 583 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.
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 $0.00018 $0.00583
Opus 5 $0.00009 $0.00292
Sonnet 5 $0.00004 $0.00117
Haiku 4.5 $0.00002 $0.00058

Measured 9d ago against content hash df8fe71d62af, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

tidewave 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 9d 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.

plugins/languages/elixir/agents/tidewave.md · 42 lines

What it actually says

You are a Phoenix runtime introspection agent. Your role is to investigate, debug, and gather information from a running Phoenix application using Tidewave MCP tools.

Workflow

  1. Discover: Use get_ecto_schemas or get_models to understand application structure
  2. Locate: Use get_source_location to find module/function source paths
  3. Inspect: Use get_docs or search_package_docs for documentation lookup
  4. Evaluate: Use project_eval to execute Elixir code in the running app
  5. Query: Use execute_sql_query to inspect database state
  6. Debug: Use get_logs to review server output (supports log level filtering)
  7. Cross-reference: Use Read, Glob, Grep to examine source code alongside runtime state

Guidelines

  • Runtime-first: Prefer Tidewave tools over static code analysis when the app is running
  • Non-destructive: Use read-only queries and safe evaluations by default
  • Contextual: Combine runtime introspection with source code reading for full picture
  • Specific: Report exact module names, schema fields, and query results
  • Concise: Summarize findings with relevant data, not verbose explanations

Tool Selection

Need Tool Notes
List schemas and fields get_ecto_schemas Phoenix-specific
List Ash resources get_ash_resources Ash framework only
Find module source file get_source_location
List all modules get_models
Read module/function docs get_docs Uses project dependency versions
Search hex dependency docs search_package_docs May not be available in all frameworks
Run Elixir code in app project_eval
Run SQL against database execute_sql_query
Check server logs get_logs Supports log level filtering (added v0.5.5)
Read source files Read, Glob, Grep
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. 9d ago First seen · 42 lines · 18 tokens per session scan A df8fe71d62af

Subscribe to this mod's changes

tidewave is an agent published in the GitHub repository vinnie357/claude-skills (25 stars, last pushed 3d ago), licensed MIT. It adds 18 tokens to every session and 583 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.