continuous-evals

continuous-evals is a skill for Claude Code, Codex from paruff/uFawkesAI. It costs 72 tokens per session (866 once invoked), scanned A, original, MIT.

A regression check for agent configuration, including rules, skills, agents, workflows, and hooks. It replays recorded tasks and compares the results with a saved baseline.

In plain words
What is it for?
Use it before pushing changes to agent configuration and in continuous integration to verify that existing agent tasks still produce expected results.
Why use it?
Changes to agent instructions can alter behaviour without breaking ordinary code tests. This check blocks changes when the task pass rate falls below the baseline.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code; installed under .agents/ (shared by several agents); mentions AGENTS.md.

Good fit Use it before pushing changes to agent configuration and in continuous integration to verify that existing agent tasks still produce expected results.

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Install with agentmods
npx agentmods add skills/paruff/ufawkesai/continuous-evals
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 paruff/uFawkesAI --skill continuous-evals
Clone the repo
git clone --depth 1 https://github.com/paruff/uFawkesAI

Made for: Claude Code, Codex.

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 continuous-evals

README.md
[![agentmods](https://agentmods.dev/badge/skills/paruff/ufawkesai/continuous-evals/github.svg)](https://agentmods.dev/skills/paruff/ufawkesai/continuous-evals)
Your own site
<a href="https://agentmods.dev/skills/paruff/ufawkesai/continuous-evals"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/continuous-evals/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 continuous-evals

Your own site · 80×15
<a href="https://agentmods.dev/skills/paruff/ufawkesai/continuous-evals"><img src="https://agentmods.dev/badge/skills/paruff/ufawkesai/continuous-evals.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 866 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 $0.00072 $0.00866
Opus 5.5 $0.00029 $0.00346
Sonnet 5.5 $0.00014 $0.00173
Haiku 4.5 $0.00007 $0.00087

Measured 17d ago against content hash 1407d5b7e1a7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

continuous-evals 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 17d 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.

.agents/skills/continuous-evals/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: continuous-evals

Load trigger: "load continuous-evals skill" > DORA: AI Capability 7: Quality internal platforms Token cost: Low to load; a run costs one cheap-model call per task

Purpose

Agent configuration is code: a reworded rule or a retired skill can silently change what agents do. This skill makes configuration changes regression-safe the same way tests make code changes safe.

How it works

Piece Path
Tasks (one JSON file each) .agents/evals/tasks/*.json
Baseline rate per rubric dimension .agents/evals/baseline.json
Runner scripts/run-evals.sh
Gate's own self-test (offline, stub agent) scripts/test-run-evals.sh
CI gate .github/workflows/agent-config-ci.yml

Each task runs in a throwaway copy of the working tree (CI: OpenCode; locally claude -p by default) with a per-task timeout, and is scored on three rubric dimensions from its transcript:

  • task success — expect: output_regex, file_absent, file_present;
  • tool use — rubric.tool_use.forbidden / required: anchored, case-insensitive regexes over tool names, MCP tools included;
  • trajectory — rubric.trajectory.max_steps: model steps taken.

The run fails if any dimension's rate drops below baseline.json, if there are no tasks, or if a task has no expectation or no rubric. CI runs it on config changes, on pushes to main, and weekly. A non-zero agent exit also fails a task, unless it sets "ignore_agent_exit": true in expect: use that only for "must not happen" tasks (e.g. protected-env) where a blocked tool call may legitimately exit non-zero. A crashed agent also leaves a file absent, so never use it for tasks that expect a positive result.

Procedure

  1. Changing configuration? Run scripts/run-evals.sh before pushing. CI runs it anyway on any change to AGENTS.md, .agents/, .claude/, .opencode/, hooks, or .pre-commit-config.yaml.
  2. An agent got something wrong in real work? Add a task that reproduces it:

Read the full file on GitHub · 81 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. 17d ago Changed · +13 lines 1407d5b7e1a7
  2. 20d ago Changed · +5 lines cf9e16ef6eed
  3. 21d ago First seen · 63 lines · 72 tokens per session scan A 2b2a9ebf6a3c

Subscribe to this mod's changes

continuous-evals is a skill published in the GitHub repository paruff/uFawkesAI (2 stars, last pushed yesterday), licensed MIT. It adds 72 tokens to every session and 866 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-30.