agentmods.dev

activity-verify

activity-verify is a skill for Claude Code, Codex from uselessspace/freedeepagents-activity-builder. It costs 76 tokens per session (966 once invoked), scanned A, original, MIT.

A verification guide for checking a FreeDeepAgents activity directory before handoff. It runs the project's verifier, tool-schema checks, and offline test kit.

In plain words
What is it for?
Use it to validate activity structure, declared tool schemas, tool creation, card behavior, and other offline checks, and to record the required evidence.
Why use it?
It catches invalid files, tool definitions, and runtime behavior before the activity is synchronized with the development client.

Skill for Claude CodeCodex

Part of the freedeepagents-activity-builder plugin — 13 skills shipped together

not rated 2 17d ago A scan 76 tokens original MIT
View the source file uselessspace/freedeepagents-activity-builder
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/uselessspace/freedeepagents-activity-builder/activity-verify
Any agent
npx skills add uselessspace/freedeepagents-activity-builder --skill activity-verify
Clone the repo
git clone --depth 1 https://github.com/uselessspace/freedeepagents-activity-builder

Made for: Claude Code, Codex.

Or install freedeepagents-activity-builder, the plugin that ships this one along with the rest of its 13 skills.

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 activity-verify

README.md
[![agentmods](https://agentmods.dev/badge/skills/uselessspace/freedeepagents-activity-builder/activity-verify.svg)](https://agentmods.dev/skills/uselessspace/freedeepagents-activity-builder/activity-verify)
Your own site
<a href="https://agentmods.dev/skills/uselessspace/freedeepagents-activity-builder/activity-verify"><img src="https://agentmods.dev/badge/skills/uselessspace/freedeepagents-activity-builder/activity-verify.svg" alt="Measured on agentmods" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 966 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 5.1 $0.00076 $0.00966
Opus 5 $0.00038 $0.00483
Sonnet 5 $0.00015 $0.00193
Haiku 4.5 $0.00008 $0.00097

Measured 5d ago against content hash 8500a841def1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

activity-verify 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/strict-tool-schema-check.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/activity-verify/SKILL.md · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Activity Verify

<builder-root> 指从本 SKILL.md 所在目录向上两级、包含根 SKILL.md 与 tools/ 的目录；不要假定它位于目标项目的 packages/ 下。

何时用：review 已清零 CONFLICT，要验收开发目录时。默认主链路到这里完成。

完整终态流程和证据格式由 ../../workflows/06-verify-directory.md 唯一维护；按其顺序执行，不另造一套门禁。

先按 ../../references/python-environment.md 解析兼容的项目 Python；没有时用其中的国内镜像 bootstrap 在 <project-root>/.fda-tools/ + .venv/ 创建。下列 <project-python> 指该环境；仅 strict check 的 <runtime-python> 指完整 FDA runtime 环境。两者都必须替换为实际解释器路径。

Required deterministic checks

  1. Bundled verifier（Python ≥3.10、stdlib only）：

    <project-python> <builder-root>/tools/activity_verifier.py <project-root>

    必须保留完整输出与 scanned N activities；不得管给 grep。任意 ERROR 阻断。

  2. Strict-tool schema（仅 manifest 声明 tools_module 时）：

    <runtime-python> <builder-root>/skills/activity-verify/scripts/strict-tool-schema-check.py \
  --activity <activity_type_id>

    使用目标 FDA runtime 的 Python/依赖；普通系统 Python 往往没有 langchain_core。无平台 repo 时由下一项 testkit 覆盖工具 schema。

  3. Offline testkit：

    <project-python> <builder-root>/testkit/fda_testkit.py activities/<activity_type_id>

    它运行 make_tools(ctx) / dsl_builder.build()、校验 typed-KV 写入，并检查 strict-mode 非法 schema。无 tools_module / dsl_builder_module 的分支可合法 skip。

Static Preview 还必须先按 ../../references/node-environment.md 解析 Node 20/22 + npm 10，再在 site/ 运行依赖安装、npm run lint + npm run build，并确认 site/dist/index.html。Card-only 跳过 Node；构建产物 可留在开发目录作为本地证据，但 source sync 会排除 dist/ 并在服务端重建。

Development Verification

按 workflow 06 输出 ## Development Verification：至少包含活动目录、Builder 路径/版本、项目 Python 路径/版本与 reused/created 状态、Semantic review、 Verifier、Strict-tool schema、Testkit；Static Preview 还记录 Node/npm 路径、版本、reused/selected 状态、依赖命令与前端 build；最后记录 warnings 和 changed files。

development-ready: yes 要求本地确定性检查全部通过。若已安装并登录 FDA Dev Client，再转 ../activity-dev-cli/SKILL.md 用活动目录做 doctor / status / sync --dry-run，已有首次 GUI 同步时执行 message --sync-first --new --smoke --pull-logs-on-error，把真实 turn 证据补进同一 block。首次 GUI 上传尚未完成时记录 deferred，不伪造同步成功。

Read the full file on GitHub · 83 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 83 lines · 76 tokens per session scan A 8500a841def1

Subscribe to this mod's changes

activity-verify is a skill published in the GitHub repository uselessspace/freedeepagents-activity-builder (2 stars, last pushed 17d ago), licensed MIT. It adds 76 tokens to every session and 966 once invoked, about $0.0004 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 2026-08-31.

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