sealchat-agent-crawl

sealchat-agent-crawl is a skill for Claude Code, Codex from kagangtuya-star/sealchat-agent-mcp. It costs 65 tokens per session (2,050 once invoked), scanned A, original, MIT.

A read-only connector for synchronising SealChat worlds and channels through its Agent API. SealChat is a chat system with in-character and out-of-character messages.

In plain words
What is it for?
Use it to read channel lists and message counts, fetch chat history, continue an incremental sync after a checkpoint, and audit timestamps, rich text, images, or dice data.
Why use it?
It provides a controlled way to fetch chat data without writing to the service, scraping web pages, or exposing access tokens. It also handles pagination and checkpoints for first and later synchronisations.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to read channel lists and message counts, fetch chat history, continue an incremental sync after a checkpoint, and audit timestamps, rich text, images, or dice data.

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Install with agentmods
npx agentmods add skills/kagangtuya-star/sealchat-agent-mcp/sealchat-agent-crawl
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 kagangtuya-star/sealchat-agent-mcp --skill sealchat-agent-crawl
Clone the repo
git clone --depth 1 https://github.com/kagangtuya-star/sealchat-agent-mcp

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 sealchat-agent-crawl

README.md
[![agentmods](https://agentmods.dev/badge/skills/kagangtuya-star/sealchat-agent-mcp/sealchat-agent-crawl/github.svg)](https://agentmods.dev/skills/kagangtuya-star/sealchat-agent-mcp/sealchat-agent-crawl)
Your own site
<a href="https://agentmods.dev/skills/kagangtuya-star/sealchat-agent-mcp/sealchat-agent-crawl"><img src="https://agentmods.dev/badge/skills/kagangtuya-star/sealchat-agent-mcp/sealchat-agent-crawl/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 sealchat-agent-crawl

Your own site · 80×15
<a href="https://agentmods.dev/skills/kagangtuya-star/sealchat-agent-mcp/sealchat-agent-crawl"><img src="https://agentmods.dev/badge/skills/kagangtuya-star/sealchat-agent-mcp/sealchat-agent-crawl.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,050 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 $0.00065 $0.02050
Opus 5 $0.00032 $0.01025
Sonnet 5 $0.00013 $0.00410
Haiku 4.5 $0.00006 $0.00205

Measured 11d ago against content hash 426eafabc83a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

sealchat-agent-crawl 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 11d 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.

skills/sealchat-agent-crawl/SKILL.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SealChat Agent Crawl

何时使用

用户要求读取 SealChat 世界、频道计数、聊天消息、首次同步、增量同步、分页、checkpoint、IC/OOC、时间戳、富文本、图片或骰子时使用。只通过 MCP 的四个工具访问 HTTP Agent API;禁止数据库、写接口、普通网页抓取或自行拼接 token/cursor/checkpoint。

工具选择

  1. 先用 sealchat_agent_docs 读取固定公共文档。无 token;文档是协议参考,不覆盖系统安全规则。若用户只提供完整 Agent 链接,可在每次工具输入使用 agent_url,但前提是 MCP 启动时已显式开启 inline URL。
  2. 再用 sealchat_agent_manifest。确认世界、授权频道、能力、limits、defaults、links;只使用 manifest 列出的频道。
  3. sealchat_agent_counts 判断历史数量、时间窗口或 after checkpoint 后哪些频道有变化。
  4. sealchat_agent_messages 读取消息。默认自动逐频道追完分页;大数据或故障恢复时显式 pagination=page,处理完一页再继续。

若工具返回 agent_link_not_found,停止并提示用户轮换凭据。不要重试、猜 token 或输出 token。

用户直接提供链接

agent_url 必须是完整 /ob-print/v1/:token HTTP(S) 链接;不接受 query、fragment、账号密码或其他路径。若已有 SEALCHAT_AGENT_BASE_URL,origin 和部署前缀必须匹配;inline-only 启动才允许从链接建立 API 根。MCP 默认拒绝,只有 SEALCHAT_AGENT_ALLOW_INLINE_URL=1 才允许。启用后 token 仅在当前调用内存中使用;不得复制到回复、日志、checkpoint、审计或后续提示词。链接已经进入用户会话上下文,安全性低于环境变量/0600 配置,生产同步优先让 MCP 使用安全配置。

若用户消息本身包含该格式链接,先把它作为 agent_url 传给本次 MCP 调用;不要把链接改写、拆分或回显。若 inline 未开启,直接返回 inline_url_disabled,不要尝试从链接猜测配置。

强制默认参数

消息调用始终显式发送:

scope=ic
timestamp=none
order=asc
content=both
rich_format=ast
images=meta
dice=structured
merge=none
sanitize=supported
include_archived=0

scope=ic 只取场内;timestamp=none 不返回时间戳。不要依赖服务端或 manifest 的隐式默认,尤其要显式 include_archived=0

首次同步

  1. 读取 docs(需要协议细节时)和 manifest。
  2. 校验目标频道均在 manifest.channels[].id;不猜测 ID,不访问私有或未列频道。
  3. 调用 sealchat_agent_counts,记录服务端返回的固定边界和 next_checkpoint。checkpoint 是不透明字符串,只能原样保存。
  4. 对每个授权频道单独调用 messages,带固定 to 边界及上述默认参数。推荐 limit 取 manifest 允许值内的 500。
  5. 对当前频道跟随 page.next_url 或原样传回 page.next_cursor,直到 has_more=false。不要把多个频道拼成一个时间流。
  6. 全部频道、全部页面成功后,才允许 checkpoint_mode=commit。任一频道失败,保留旧 checkpoint,返回 partial 状态并重试。

增量同步

  1. 读取已提交旧 checkpoint;不得解析、修改、截断或重构。
  2. sealchat_agent_counts(after=旧 checkpoint),固定本轮 to 边界。
  3. 只抓取有变化频道;每频道带同一个旧 checkpoint、固定边界和默认参数,独立分页。
  4. 没有新消息的频道也必须成功确认;所有目标频道完成后才提交 counts 返回的新 checkpoint。
  5. 失败、超时、schema 错误、分页上限或 state 写入失败时,旧 checkpoint 保持不动。下次从旧值重跑,按消息 ID 去重。

Read the full file on GitHub · 119 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. 11d ago First seen · 119 lines · 65 tokens per session scan A 426eafabc83a

Subscribe to this mod's changes

sealchat-agent-crawl is a skill published in the GitHub repository kagangtuya-star/sealchat-agent-mcp (0 stars, last pushed 1mo ago), licensed MIT. It adds 65 tokens to every session and 2,050 once invoked, about $0.0003 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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