bf-e2e

bf-e2e is a skill for Claude Code, Codex from chan4lk/specclaw. It costs 146 tokens per session (833 once invoked), scanned A, original, MIT.

Automatically detects the target application's platform (Web/Desktop/Mobile/Hybrid/Embedded) and stack, dynamically selects the most effective E2E testing framework for it with a stated justification, and generates a Page Object Model plus a runnable E2E test script that asserts structural equality against SpecClaw…

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/chan4lk/specclaw/bf-e2e
Any agent
npx skills add chan4lk/specclaw --skill bf-e2e
Clone the repo
git clone --depth 1 https://github.com/chan4lk/specclaw

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 bf-e2e

README.md
[![agentmods](https://agentmods.dev/badge/skills/chan4lk/specclaw/bf-e2e.svg)](https://agentmods.dev/skills/chan4lk/specclaw/bf-e2e)
Your own site
<a href="https://agentmods.dev/skills/chan4lk/specclaw/bf-e2e"><img src="https://agentmods.dev/badge/skills/chan4lk/specclaw/bf-e2e.svg" alt="Measured on agentmods" height="20"></a>
Per session 146 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 833 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00146 $0.00833
Opus 5 $0.00073 $0.00417
Sonnet 5 $0.00029 $0.00167
Haiku 4.5 $0.00015 $0.00083

Measured today against content hash ad22c5245387, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

bf-e2e 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 today.

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/specclaw/skills/bf-e2e/SKILL.md · 38 lines

How it starts

The opening of the file, as written. The whole thing — 38 lines — stays where its author put it; the contents beside it link to each section on GitHub.

specclaw bf-e2e

First, run specclaw-ensure-init .specclaw — idempotently creates .specclaw/ if it doesn't exist (silent if already initialized).

Generate E2E test coverage for a target application, driven by a universal E2E automation architect agent. Read-only side-command — no specclaw-validate-change call, no <change> involved, matching the analyze/bf-architecture/bf-baseline pattern.

  1. Resolve the target path. If the user's message names a path, use it (validate it exists and is inside the repo). Otherwise default to the repository root.

  2. Check for golden-master fixtures:

    ls .specclaw/baseline/fixtures/GM-*.json 2>/dev/null
    

    This is a soft input, not a hard requirement — if empty, proceed anyway (the agent generates tests from the described flow instead and flags the gap; see its Task 4). If present, resolve the full list of fixture filenames to pass along.

  3. Check for prior context (soft — pass paths if present, don't fail if absent):

    [ -f .specclaw/analysis/codebase-report.md ] && echo present
    [ -f .specclaw/baseline/scenarios.md ] && echo present
    
  4. Spawn the automation agent: Agent tool, subagent_type: "bf-e2e-architect", on the model from config.yaml models.coding (default: anthropic/claude-sonnet-5) — this agent writes real, runnable test code, the same routing as build's coding agents, not the read-only analysis agents. Pass as context:

    • The resolved target path.
    • The resolved .specclaw/baseline/fixtures/ path and the list of GM-*.json filenames found in Step 2 (empty list is valid input).
    • The resolved paths of codebase-report.md and scenarios.md, if present (Step 3).
    • Any flow/feature description the user included in their invocation of this skill.
  5. The agent detects platform/stack, selects the E2E framework, and writes the page object(s) and test script(s) itself, per its own Output section — this skill does not write any file itself.

  6. Relay the agent's full response to the user as-is — it already carries the required Detection Summary → Setup/Execution Commands → Page Object File(s) → SpecClaw Test Script structure. Do not summarize it away; the human needs the actual generated code and commands, not a paraphrase.

Read the full file on GitHub · 38 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. today First seen · 38 lines · 146 tokens per session scan A ad22c5245387

Subscribe to this mod's changes

bf-e2e is a skill published in the GitHub repository chan4lk/specclaw (12 stars, last pushed yesterday), licensed MIT. It adds 146 tokens to every session and 833 once invoked, about $0.0007 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 2026-09-05.

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