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Agent skill

Cost Conversation

by ruvnet in ruvnet/ruflo

Per-conversation cost view — list every session in cost-tracking with started-at, message count, top model, and total cost

MITAuto-check: notesAI & LLM Engineering

Install Cost Conversation

skills CLI
$ npx skills add ruvnet/ruflo --skill cost-conversation -a claude-code

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

GitHub CLI
$ gh skill install ruvnet/ruflo cost-conversation --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/ruvnet/ruflo.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/ruflo-cost-tracker/skills/cost-conversation .claude/skills/cost-conversation && 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
cost-conversation
GitHub stars
74k
Token cost
~407 tokens
SKILL.md length
157 words
Files
1
Skills in repo
264
Repo updated
First seen
Licence
MIT

At a glance

Per-conversation cost view — list every session in cost-tracking with started-at, message count, top model, and total cost

  • Works in 2 steps: Run the script from anywhere → Inspect the markdown table — total cost…
  • Tasks that involve LLM cost and token optimization
  • SKILL.md covers When to use, Steps and Cross-references
  • Calls node

What it does

Cost Conversation is an agent skill from ruvnet/ruflo. Per-conversation cost view — list every session in cost-tracking with started-at, message count, top model, and total cost

Its SKILL.md is about 410 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 AI & LLM Engineering, covering LLM cost and token optimization. The repository describes itself as: 🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory…. The licence is MIT.

When your agent uses it

  • Tasks that involve LLM cost and token optimization

Example prompts

  • “/cost-conversation”

Requirements

  • Pre-approved tools (allowed-tools): Bash

Workflow steps

2 steps, taken from the first numbered list in SKILL.md.

  1. Run the script from anywhere
  2. Inspect the markdown table — total cost across all conversations, per-tier rollup, then a per-session table (started-at, sessionId prefix…

What it can do on your machine

Read from SKILL.md and the folder at commit 58e0ae7. 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:

    • Bash

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • node

    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

Cost Conversation loads about 407 tokens when it runs. Until then it costs about 35 tokens; SKILL.md has 157 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~35
When it runs · the whole SKILL.md, loaded when a task matches
~407

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: Bash

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 ruvnet/ruflo at commit 58e0ae7, republished under its MIT licence (© ruvnet). 157 words, ~407 tokens.

Download SKILL.mdSave it as .claude/skills/cost-conversation/SKILL.md (or your agent's skills folder).
name
cost-conversation
description
Per-conversation cost view — list every session in cost-tracking with started-at, message count, top model, and total cost
allowed-tools
Bash

Cost per Conversation

cost-report and cost-optimize aggregate by agent and model. This skill aggregates by conversation (session) — a different lens that surfaces which conversations cost the most. Useful for retrospectives ("which sessions ran long on Opus?") and for evaluating whether a given project's session pattern is sustainable.

When to use

  • After multiple sessions, to see total spend per conversation.
  • Before scoping a long session, to understand typical cost-per-conversation.
  • For per-project rollups via CONV_NAMESPACE=cost-tracking-<project>.

Steps

  1. Run the script from anywhere:

    bash
    node plugins/ruflo-cost-tracker/scripts/conversation.mjs

    Optional env:

    • CONV_FORMAT=json — emit JSON instead of markdown
    • CONV_LIMIT=20 — show only the most recent N conversations
    • CONV_NAMESPACE=cost-tracking — override target namespace

  2. Inspect the markdown table — total cost across all conversations, per-tier rollup, then a per-session table (started-at, sessionId prefix, message count, top model, cost).

Cross-references

  • cost-track — the producer that populates cost-tracking:session-*
  • cost-report — same data, per-agent / per-model lens
  • cost-trend — drift across bench runs (different axis: corpus runs vs conversations)
  • cost-budget-check — sums across conversations to evaluate the budget threshold

© ruvnet, MIT. 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 plugins/ruflo-cost-tracker/skills/cost-conversation of ruvnet/ruflo.

Open the folder on GitHubat commit 58e0ae7

Compare with similar skills

Cost Conversation 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.

Cost Conversation compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cost Conversation this skillruvnet/ruflo74k—~407Automated safety check: NotesMIT
Context Compressionguanyang/open-agent-hub9772 repos~4.6kAutomated safety check: PassMIT
Bounty Hunter1sadjlk/bounty-hunter-skill2821 repos~761Automated safety check: PassMIT
Skill Shortenerluongnv89/asm954—~3.8kAutomated safety check: NotesMIT
Fleet Auditoralexgreensh/token-optimizer2.5k—~1.7kAutomated safety check: PassCustom licence
Context Auditundefined-ui/second-brain-os1k—~802Automated safety check: PassMIT

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Categories

Questions about Cost Conversation

What does Cost Conversation do?

Per-conversation cost view — list every session in cost-tracking with started-at, message count, top model, and total cost. Cost Conversation is an agent skill from ruvnet/ruflo.

When should I use Cost Conversation?

Cost Conversation fits situations like: tasks that involve LLM cost and token optimization.

How do I install Cost Conversation in Claude Code?

Run `npx skills add ruvnet/ruflo --skill cost-conversation -a claude-code`. Or copy the skill folder (plugins/ruflo-cost-tracker/skills/cost-conversation in ruvnet/ruflo) into .claude/skills/cost-conversation in your project. Claude Code loads it when a task matches its description.

How do I install Cost Conversation in Codex?

Run `npx skills add ruvnet/ruflo --skill cost-conversation -a codex`. Or copy the skill folder (plugins/ruflo-cost-tracker/skills/cost-conversation in ruvnet/ruflo) into .agents/skills/cost-conversation in your project. Codex loads it when a task matches its description.

Can I use Cost Conversation 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 ruvnet/ruflo --skill cost-conversation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cost-conversation, .gemini/skills/cost-conversation, .github/skills/cost-conversation and .opencode/skills/cost-conversation in your project.

What does Cost Conversation need to run?

Going by SKILL.md and its folder, Cost Conversation needs the command-line tools its instructions call (node). Its frontmatter pre-approves these tools: Bash.

Does Cost Conversation 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 Cost Conversation 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 Cost Conversation use?

Cost Conversation is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Cost Conversation use?

About 407 tokens (SKILL.md is roughly 1.6k 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 Cost Conversation?

Skills that share tags, products or a category with Cost Conversation: Context Compression (guanyang/open-agent-hub, 977 stars), Bounty Hunter (1sadjlk/bounty-hunter-skill, 282 stars), Skill Shortener (luongnv89/asm, 954 stars) and Fleet Auditor (alexgreensh/token-optimizer, 2.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cost Conversation?

ruvnet (a GitHub user) maintains it in ruvnet/ruflo, which has 74,159 GitHub stars. The repository holds 264 skills in this directory. The repository was last updated on October 9, 2026.

Source: ruvnet/ruflo on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.