Agent skill

Cost Booster Edit

Apply a simple code transform via agent-booster's WASM engine — sub-millisecond, deterministic, $0 (no LLM call).

MITAuto-check: notes

Install Cost Booster Edit

skills CLI

$ npx skills add ruvnet/ruflo --skill cost-booster-edit -a claude-code

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

GitHub CLI

$ gh skill install ruvnet/ruflo cost-booster-edit --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-booster-edit .claude/skills/cost-booster-edit && 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/

Paste into Claude Code

Install the "cost-booster-edit" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-cost-tracker/skills/cost-booster-edit into .claude/skills/cost-booster-edit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cost-booster-edit", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-cost-tracker/skills/cost-booster-edit

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add ruvnet/ruflo --skill cost-booster-edit -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install ruvnet/ruflo cost-booster-edit --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/ruflo-cost-tracker/skills/cost-booster-edit .agents/skills/cost-booster-edit && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "cost-booster-edit" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-cost-tracker/skills/cost-booster-edit into .agents/skills/cost-booster-edit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cost-booster-edit", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add ruvnet/ruflo --skill cost-booster-edit -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install ruvnet/ruflo cost-booster-edit --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/ruflo-cost-tracker/skills/cost-booster-edit .cursor/skills/cost-booster-edit && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "cost-booster-edit" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-cost-tracker/skills/cost-booster-edit into .cursor/skills/cost-booster-edit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cost-booster-edit", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/ruvnet/ruflo.git --path plugins/ruflo-cost-tracker/skills/cost-booster-edit

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add ruvnet/ruflo --skill cost-booster-edit -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install ruvnet/ruflo cost-booster-edit --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/ruflo-cost-tracker/skills/cost-booster-edit .gemini/skills/cost-booster-edit && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "cost-booster-edit" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-cost-tracker/skills/cost-booster-edit into .gemini/skills/cost-booster-edit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cost-booster-edit", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install ruvnet/ruflo cost-booster-edit

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add ruvnet/ruflo --skill cost-booster-edit -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/ruflo-cost-tracker/skills/cost-booster-edit .github/skills/cost-booster-edit && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "cost-booster-edit" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-cost-tracker/skills/cost-booster-edit into .github/skills/cost-booster-edit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cost-booster-edit", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add ruvnet/ruflo --skill cost-booster-edit -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install ruvnet/ruflo cost-booster-edit --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/ruvnet/ruflo.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/ruflo-cost-tracker/skills/cost-booster-edit .opencode/skills/cost-booster-edit && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "cost-booster-edit" agent skill from https://github.com/ruvnet/ruflo/tree/main/plugins/ruflo-cost-tracker/skills/cost-booster-edit into .opencode/skills/cost-booster-edit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cost-booster-edit", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: cost-booster-edit
GitHub stars: 74k
Token cost: ~1.4k tokens
SKILL.md length: 508 words
Files: 1
Skills in repo: 264
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Apply a simple code transform via agent-booster's WASM engine — sub-millisecond, deterministic, $0 (no LLM call).

Works in 6 steps: Take inputs — intent (one of the 6… → Read the source to a variable, derive… → Invoke — run from anywhere under v3/ so… → …
SKILL.md covers When to use, Steps, Measured benchmark… and What's verified locally, plus 1 more section
Calls node

What it does

Cost Booster Edit is an agent skill from ruvnet/ruflo. Apply a simple code transform via agent-booster's WASM engine — sub-millisecond, deterministic, $0 (no LLM call). Companion to cost-booster-route.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with WebAssembly. 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.

Example prompts

“/cost-booster-edit”

Requirements

Pre-approved tools (allowed-tools): Bash

Workflow steps

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

Take inputs — intent (one of the 6 booster intents) and file path.
Read the source to a variable, derive the intended edit text from the intent (caller supplies).
Invoke — run from anywhere under v3/ so agent-booster resolves
Check confidence — default threshold is 0.5. Below that, fail closed: do NOT write the file; report and escalate to Tier 2/3.
Write back the output field if success && confidence >= 0.5.
Persist outcome — memory_store --namespace cost-tracking --key "booster-edit-..." --value '{"intent":..., "latency":..., "confidence"…

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 Booster Edit loads about 1.4k tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 508 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~41
When it runs · the whole SKILL.md, loaded when a task matches: ~1.4k

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). 508 words, ~1,439 tokens.

Download SKILL.mdSave it as .claude/skills/cost-booster-edit/SKILL.md (or your agent's skills folder).

name: cost-booster-edit
description: Apply a simple code transform via agent-booster's WASM engine — sub-millisecond, deterministic, $0 (no LLM call). Companion to cost-booster-route.
allowed-tools: Bash
argument-hint: <intent> <file>

Cost Booster Edit

Direct wrapper around agent-booster.apply() (npm agent-booster v0.2.x, exposed via agentic-flow/agent-booster). Use when a transform is already classified as Tier 1 eligible — cost-booster-route recommends whether; this skill executes.

When to use

Bulk transforms across many files (var → const, add-types, remove-console, add-error-handling, async-await, add-logging).
Any simple, structural edit where an LLM would otherwise be called and billed.
Inside CI pipelines where determinism + zero-cost matter more than naturalness.

Do NOT use when the transform requires reasoning about intent, naming, or cross-file context — those are Tier 2/3 jobs.

Steps

Take inputs — intent (one of the 6 booster intents) and file path.
Read the source to a variable, derive the intended edit text from the intent (caller supplies).

Invoke — run from anywhere under v3/ so agent-booster resolves:

bash

node --input-type=module -e '
  import("agent-booster")
    .then(async ({ AgentBooster }) => {
      const booster = new AgentBooster();
      const r = await booster.apply({
        code: process.argv[1],
        edit: process.argv[2],
        language: process.argv[3] || "javascript",
      });
      console.log(JSON.stringify({
        success: r.success, output: r.output, latency: r.latency,
        confidence: r.confidence, strategy: r.strategy,
        tokens: r.tokens,
      }));
    })
    .catch(e => console.log(JSON.stringify({ success: false, error: String(e.message) })));
' -- "$CODE" "$EDIT" "$LANG"

Check confidence — default threshold is 0.5. Below that, fail closed: do NOT write the file; report and escalate to Tier 2/3.
Write back the output field if success && confidence >= 0.5.
Persist outcome — memory_store --namespace cost-tracking --key "booster-edit-..." --value '{"intent":..., "latency":..., "confidence":..., "strategy":..., "applied":true}'. Feed the routing learner via hooks_model-outcome (use the cost-optimize skill's step 8).

Measured benchmark (2026-05-04, this checkout)

5 representative intents run through AgentBooster.apply():

intent	latency (ms)	wall (ms)	confidence	strategy	success
var-to-const	5	5	0.65	fuzzy_replace	true
add-types	1	1	0.64	fuzzy_replace	true
remove-console	0	0	0.70	fuzzy_replace	true
add-error-handling	0	0	0.85	exact_replace	true
async-await	0	0	0.85	exact_replace	true

Avg measured latency ≈ 1.2 ms. All 5 above the default 0.5 confidence threshold. See docs/benchmarks/0002-baseline.md for the LLM-baseline comparison.

Show full SKILL.md (254 more words)Show less

What's verified locally

Claim	Status here
100% win rate	Verified — 12/12 on `bench/booster-corpus.json` (see `runs/latest.json`). Booster AND Gemini 2.0 Flash both score 12/12 — this is a structural-correctness corpus, not a hard adversarial one.
Sub-millisecond latency	Verified — avg 0.67 ms, p50 0 ms, p99 6 ms, max 6 ms.
$0 per edit	Verified structurally — no API call, no token billing.
Deterministic AST-based merge	Verified — same inputs reproduce the same `output` and `strategy`.
Confidence ≥ 0.5 ⇒ correct	Verified on this corpus — 12/12 above 0.5 (min 0.551), all correct.
`350×` speedup vs. LLM	Verified — exceeded against every tier: 1000.9× vs Gemini 2.0 Flash, 1838.7× vs Claude Sonnet 4.6, 2634.1× vs Claude Opus 4.7. Run `BENCH_LLM_BASELINE=1 BENCH_ANTHROPIC=1 node scripts/bench.mjs` to refresh.
Cost saved per edit	Measured: $0.000020 vs Gemini, $0.000722 vs Sonnet 4.6, $0.004720 vs Opus 4.7 (the booster side is $0 in all cases).
Win parity with frontier LLMs	Verified — Booster, Gemini 2.0 Flash, Sonnet 4.6, Opus 4.7 all scored 12/12 on this corpus. Booster matches LLM accuracy structurally for deterministic transforms.

To extend: add cases to bench/booster-corpus.json, run ( cd v3 && node ../plugins/ruflo-cost-tracker/scripts/bench.mjs ) (or with BENCH_LLM_BASELINE=1), commit runs/latest.json. Smoke step 23 fails the build if win rate drops below 0.80.

Override the LLM model: BENCH_LLM_MODEL='claude-sonnet-4' (when wired against api.anthropic.com) or BENCH_LLM_MODEL='models/gemini-2.5-flash' for a reasoning-model comparison. Pricing flags: BENCH_LLM_PRICE_IN, BENCH_LLM_PRICE_OUT.

fuzzy_replace is best-effort; for production transforms prefer cases that route to exact_replace (≥0.85 confidence in our sample).

Cross-references

ADR-0002 §"Decision 1" (route classifier) and §"Riskiest assumption" (Bash-shelled invocation) · cost-booster-route (classifier-side companion) · agent-booster npm README (3-mode install, MCP / npm / HTTP).

Files

Just SKILL.md in plugins/ruflo-cost-tracker/skills/cost-booster-edit of ruvnet/ruflo.

Open the folder on GitHubat commit 58e0ae7

Compare with similar skills

Cost Booster Edit 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 Booster Edit compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Cost Booster Edit this skillruvnet/ruflo	74k	—	~1.4k	Automated safety check: Notes	MIT	today
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Nginx To Higress Migrationhigress-group/higress	9.5k	—	~3.9k	Automated safety check: Pass	Apache-2.0	yesterday
Update V86felixrieseberg/windows95	24k	—	~1.7k	Automated safety check: Pass	Custom licence	28 days ago
Dotlottie WebLottieFiles/dotlottie-web	892	—	~3.5k	Automated safety check: Pass	MIT	2 days ago
Adding Internal API RouteTriliumNext/Trilium	38k	—	~3.3k	Automated safety check: Pass	AGPL-3.0	today

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Questions about Cost Booster Edit

What does Cost Booster Edit do?

Apply a simple code transform via agent-booster's WASM engine — sub-millisecond, deterministic, $0 (no LLM call). Cost Booster Edit is an agent skill from ruvnet/ruflo. Apply a simple code transform via agent-booster's WASM engine — sub-millisecond, deterministic, $0 (no LLM call).

How do I install Cost Booster Edit in Claude Code?

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

How do I install Cost Booster Edit in Codex?

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

Can I use Cost Booster Edit 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-booster-edit -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-booster-edit, .gemini/skills/cost-booster-edit, .github/skills/cost-booster-edit and .opencode/skills/cost-booster-edit in your project.

What does Cost Booster Edit need to run?

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

Does Cost Booster Edit 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 Booster Edit 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 Booster Edit use?

Cost Booster Edit 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 Booster Edit use?

About 1.4k tokens (SKILL.md is roughly 5.8k 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 Booster Edit?

Skills that share tags, products or a category with Cost Booster Edit: RuView CLI, API and WASM (ruvnet/RuView, 97k stars), Nginx To Higress Migration (higress-group/higress, 9.5k stars), Update V86 (felixrieseberg/windows95, 24k stars) and Dotlottie Web (LottieFiles/dotlottie-web, 892 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cost Booster Edit?

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.

Cost Booster Edit

Install Cost Booster Edit

Facts

At a glance

What it does

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Cost Booster Edit

When to use

Steps

Measured benchmark (2026-05-04, this checkout)

What's verified locally

Cross-references

Files

Compare with similar skills

Similar skills

RuView CLI, API and WASM

Nginx To Higress Migration

Update V86

Dotlottie Web

Adding Internal API Route

Client Request Signature Reversal

More from ruvnet/ruflo

AgentDB Pattern Memory

Security Audit Scanner

SPARC Development Methodology

Swarm Orchestration

Ruflo Multi-Agent Orchestration

Agent Coordination

Questions about Cost Booster Edit

Install Cost Booster Edit

Facts

At a glance

What it does

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Cost Booster Edit

When to use

Steps

Measured benchmark (2026-05-04, this checkout)

What's verified locally

Cross-references

Files

Compare with similar skills

Similar skills

More from ruvnet/ruflo

Related

Questions about Cost Booster Edit