Persistent memory between sessions. Guardrails before dangerous writes. A full audit trail. One extension, every agent.
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Most developers spend more time re-explaining context than they realize. Primer fixes that at the infrastructure level.
Re-reads your README, re-asks about architecture, re-discovers what was done. 15–30 tool calls before writing a line.
No off-limits concept. Overwrites WIP, touches .env, blows away migration files.
Something broke. No idea what changed, in what order, or why. Every debug session starts blind.
One brief call delivers pending plans, past decisions, and handoff notes. Agents go straight to work — zero ramp-up.
Dangerous files blocked before the write. Rules defined once, enforced across Claude, Cursor, Windsurf automatically.
Every action signed and timestamped. See what changed, which agent did it, and when — in real-time and in history.
Primer runs as a local daemon alongside your IDE — zero latency, no cloud dependency for core features.
Facts, decisions, and handoffs survive session restarts. Agents on Machine B pick up exactly where Machine A left off.
Block, warn, or allow per file or pattern. Secrets are never touched. Rules sync across all agents instantly.
Every agent action in real-time in your VS Code sidebar — file reads, writes, guardrail checks as they happen.
Conflict detection prevents two agents writing the same file simultaneously. Locks released automatically when done.
Every action signed and timestamped locally. Tamper-evident logs mean you always know what happened.
Works over stdio (Cursor, Claude Desktop) and HTTP/SSE (browser agents). One extension, all your agents.
Agents call Primer tools instead of re-reading files. Context is always ready — preloaded, not rediscovered.
One call loads all rules, past decisions, and handoffs. No re-reading README files.
Every write validated against guardrails. Blocked files rejected instantly.
Summary, next steps, and files stored. The next agent gets full context.
Primer exposes a local MCP server. Point your AI tool at it — that's all it takes.
One-click config injection via the VS Code sidebar.
HTTP relay — copy the URL, paste into Claude.ai.
“The next agent always knows what the last one did.”
That's the whole point of Primer.