cosyncing/cosyncing
C2Synchronize and Orchestrate agents from CLI to GUI, across desktop to phone.
★ 10+ · cosyncing/cosyncing source on GitHub · this plugin in the registry
cosyncing/cosyncing is a DeepSeek Harness plugin rated C2 — one powerful capability or sensitive behavior. It executes system commands, decodes base64 payloads, starts a network server, reads credential-class env vars.
What it can do
| Capability | Flag | Evidence |
|---|---|---|
| executes system commands | exec | ×178 src, e.g. scripts/check.ts:168, scripts/check.ts:183 |
| decodes base64 payloads | base64_decode | ×21 src, e.g. scripts/dev/capture-store-screenshots.mjs:755, scripts/dev/compose-store-frames.mjs:324 |
| starts a network server | net_server | ×23 src, e.g. scripts/dev/credential-gate-socket-verifier.mjs:76, scripts/dev/credential-gate-socket-verifier.mjs:79 |
| reads credential-class env vars | token_env | ANTHROPIC_API_KEY, CLAUDE_CODE_API_KEY_HELPER, COSYNCING_PI_INTEGRATION_TOKEN, COSYNCING_TOKEN |
Outbound domains
in-toto.io slsa.dev cosyncing.dev devbox.tailnet.ts.net bun.sh chatgpt.com moonshotai.github.io no-color.org
Environment variables it reads
COSYNCING_TEST_PORT OPENCODE_URL COSYNCING_CODEX_APP_SERVER_SOCK OPENCODE_TRACE_MODEL_ID OPENCODE_TRACE_PROVIDER_ID COSYNCING_CODEX_SYNC_SERVER COSYNCING_OC_TEST_PORT COSYNCING_BROKER COSYNCING_CODEX_TEST_MODEL CLAUDE_CONFIG_DIR
How to read this
Levels measure capability surface and transparency, not maliciousness. A C3 plugin can be entirely legitimate — a desktop shell genuinely needs subprocesses. The point is that you can see this before installing. See the levels explained and how dsh plugins work.
Findings come from static analysis of shipped code; nothing is executed. Think a flag is wrong? Open an issue — every flag cites the file and line it came from.