feat: add WeChat channel plugin (ilink)

[videGavin]

Summary

• Add a WeChat channel plugin that bridges messages via the ilink bot API
• Supports text messaging, voice transcription, quoted replies, and multi-account
• Session persistence across gateway restarts (sync buf + context tokens)
• Exponential backoff and session expiry handling
• Zero dependencies — uses Node.js built-in fetch and crypto

Plugin Structure

plugins/weixin/
├── plugin.json    # Plugin manifest (type: channel)
├── plugin.mjs     # JSON-RPC subprocess plugin (Node.js)
└── README.md      # Documentation

How It Works

1. Plugin starts as a subprocess, communicates via JSON-RPC over stdin/stdout
2. On initialize: loads WeChat accounts, starts long-poll monitors per account
3. Incoming messages → message.inbound notification → FastClaw routes to agent
4. Agent reply → FastClaw sends channel.send → plugin forwards via ilink sendMessage

Test Plan

• Plugin discovered and started by FastClaw gateway
• Multi-account monitoring (2 accounts)
• Inbound message received and routed to agent
• Agent reply sent back to WeChat user
• Session expiry detection and pause
• New account auto-detection
• Voice message transcription
• Media message handling

🤖 Generated with Claude Code

[idoubi]

Thank you for your contribution.

Could you submit this plugin as a standalone repository? Something like this:
https://github.com/cornking2020/fastclaw-mattermost-plugin

Maybe you could name it: fastclaw-plugin-weixin.

[videGavin]

OK

…

On Fri, Mar 27, 2026 at 9:43 AM idoubi ***@***.***> wrote: *idoubi* left a comment (fastclaw-ai/fastclaw#6) <#6?email_source=notifications&email_token=BQ25G2RVKI5EFWCQBFPAW434SXMC5A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMJTHE2DOMRUGA32M4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2LK4DSL5RW63LNMVXHIX3POBSW4X3DNRUWG2Y#issuecomment-4139472407> Thank you for your contribution. Could you submit this plugin as a standalone repository? Something like this: https://github.com/cornking2020/fastclaw-mattermost-plugin Maybe you could name it: *fastclaw-plugin-weixin*. — Reply to this email directly, view it on GitHub <#6?email_source=notifications&email_token=BQ25G2RVKI5EFWCQBFPAW434SXMC5A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMJTHE2DOMRUGA32M4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2LK4DSL5RW63LNMVXHIX3POBSW4X3DNRUWG2Y#issuecomment-4139472407>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BQ25G2T6RHAD75EWIDLPBDT4SXMC5AVCNFSM6AAAAACXAY6NJ2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DCMZZGQ3TENBQG4> . You are receiving this because you authored the thread.Message ID: ***@***.***>