cost-trend
Read every docs/benchmarks/runs/.json and surface drift in win rate, latency, escalation rate, and LLM-baseline cost over time
- Installs
- 683
- Last 24h
- —
- Trending rank
- —
- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/ruvnet/ruflo --skill cost-trend- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads cost-trend automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Cost Trend
The smoke gate is binary (winRate ≥ 0.80 → pass/fail). The corpus benchmarks captured over time form a curve — and curves catch regressions the gate misses (win rate slowly creeping from 100% to 85% is "still passing" by smoke but a real degradation).
This skill reads every persisted run in docs/benchmarks/runs/*.json and reports first→last deltas plus a per-run series, flagging regressions in win rate or latency.
When to use
- Before a release — check that the speedup hasn't drifted.
- After expanding the corpus — verify older runs still hit the same win rate on the new corpus they reflected.
- After upgrading
agent-booster— surface latency / strategy changes.
Steps
-
Run the trend script from the project root:
node plugins/ruflo-cost-tracker/scripts/trend.mjsOptional env:
TREND_FORMAT=json— emit JSON instead of markdownTREND_LIMIT=10— consider only the most recent N runs
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Inspect the drift summary — first vs last on win rate, avg latency, p99, escalation rate, speedup vs Gemini.
-
Inspect the per-run series — one row per run, including Sonnet 4.6 + Opus 4.7 baseline latencies if those were enabled (
BENCH_ANTHROPIC=1at run time). -
Regression flags — the script emits
> ⚠ Regressioncallouts when:- Win rate dropped between first and last run
- Avg latency rose ≥ 1.5× from first run
Cross-references
cost-benchmark— the producer of the run JSONs this skill consumesbench/booster-corpus.json— the corpus version is recorded in each run, so trends across corpus versions remain interpretabledocs/benchmarks/runs/latest.json— the most-recent run; smoke step 23 gates onwinRate ≥ 0.80from this file
FAQ
What does the cost-trend skill do?
Read every docs/benchmarks/runs/.json and surface drift in win rate, latency, escalation rate, and LLM-baseline cost over time
How do I install cost-trend?
Run npx skills add https://github.com/ruvnet/ruflo --skill cost-trend in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/cost-trend/ (personal) or .claude/skills/cost-trend/ (project).
Which AI agents can use cost-trend?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is cost-trend safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains cost-trend?
It is published by ruvnet in ruvnet/ruflo. It has 683 recorded installs.
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