opencode-sila-prime

An OpenCode V2 plugin that primes each session from the sila knowledge store. On the first prompt it runs sila prime in the project directory and injects the briefing, so the cross-tool knowledge sila has collected reaches OpenCode without running the CLI by hand. A /sila command runs sila subcommands on demand.

How it works

• On the first prompt of a session, the plugin runs sila prime --no-color in the session's project directory and prepends the output to the prompt inside a <sila_memory> wrapper.
• The briefing is truncated to a character budget (default 6000) and the call is killed after a timeout (default 5s), so a slow or missing sila never blocks a prompt for long.
• The session is marked after one attempt. A quiet project or a missing binary does not spawn a process on every prompt. Use /sila to refresh.
• The plugin shells out to the sila CLI. It never reads or writes sila's database.

Requirements

sila on PATH, or set SILA_BIN to its full path. Tested against sila 0.x and OpenCode v2.0.3.

To pin a release, replace main in the URL with a tag such as v0.1.0.

OpenCode

This plugin runs on OpenCode. New accounts through my referral link get $5 in usage credits, and I get $5 too:

https://opencode.ai/go?ref=N9H3ZEP22A

Install

mkdir -p ~/.config/opencode/plugins
curl -fsSL \
  https://raw.githubusercontent.com/jadmadi/opencode-sila-prime/main/sila-prime.ts \
  -o ~/.config/opencode/plugins/sila-prime.ts

For one project, put it in .opencode/plugins/. Reload a running server by touching the file:

touch ~/.config/opencode/plugins/sila-prime.ts

Command

Use	Runs
/sila	sila prime --no-color
/sila sync	sila sync, with a longer timeout
/sila search "wal mode"	sila search "wal mode"
/sila status	sila status
/sila digest --human	sila digest --human

Any arguments are passed to sila unchanged, so every subcommand works. Bare /sila runs prime. The result is posted to the session. A non-zero exit throws the output so the error is visible.

Environment

Variable	Default	Use
SILA_BIN	sila	Path to the sila binary
SILA_PRIME	on	off, 0, or false disables the first-prompt inject
SILA_PRIME_OFF	unset	1 disables the inject
SILA_PRIME_ARGS	unset	Extra flags for prime, for example --top=8
SILA_PRIME_BUDGET	6000	Character budget for the injected briefing
SILA_PRIME_TIMEOUT	5000	Prime timeout in milliseconds
SILA_OUTPUT_CAP	20000	Character cap for /sila output

Relation to the memory plugin

memory injects OpenCode-only project files. This plugin injects sila's cross-tool briefing. They do different jobs and can run together. If the two briefings feel redundant, disable one: set MEMORY_BUDGET low, or set SILA_PRIME=off and use /sila on demand.

Tests

bun test

Attribution

Sila is a separate project by Jad Madi, MIT licensed. See NOTICE.

License

AGPL-3.0-only. Copyright (C) 2026 Jad Madi.