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feat(hook): block grep tool and guide to safe-grep

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This commit is contained in:
YeonGyu-Kim
2025-12-04 18:06:29 +09:00
parent 8c6dc77d53
commit b397dd6655
2 changed files with 13 additions and 7 deletions
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16
src/hooks/context-window-monitor.ts
View File

@@ -1,7 +1,8 @@
import type { PluginInput } from "@opencode-ai/plugin"
const ANTHROPIC_CONTEXT_LIMIT = 1_000_000
const CONTEXT_WARNING_THRESHOLD = 0.75
const ANTHROPIC_DISPLAY_LIMIT = 1_000_000
const ANTHROPIC_ACTUAL_LIMIT = 200_000
const CONTEXT_WARNING_THRESHOLD = 0.70
const CONTEXT_REMINDER = `[SYSTEM REMINDER - 1M Context Window]
@@ -65,16 +66,17 @@ export function createContextWindowMonitorHook(ctx: PluginInput) {
return sum + inputTokens + cacheReadTokens
}, 0)
const usagePercentage = totalInputTokens / ANTHROPIC_CONTEXT_LIMIT
const actualUsagePercentage = totalInputTokens / ANTHROPIC_ACTUAL_LIMIT
if (usagePercentage < CONTEXT_WARNING_THRESHOLD) return
if (actualUsagePercentage < CONTEXT_WARNING_THRESHOLD) return
remindedSessions.add(sessionID)
const usedPct = (usagePercentage * 100).toFixed(1)
const remainingPct = ((1 - usagePercentage) * 100).toFixed(1)
const displayUsagePercentage = totalInputTokens / ANTHROPIC_DISPLAY_LIMIT
const usedPct = (displayUsagePercentage * 100).toFixed(1)
const remainingPct = ((1 - displayUsagePercentage) * 100).toFixed(1)
const usedTokens = totalInputTokens.toLocaleString()
const limitTokens = ANTHROPIC_CONTEXT_LIMIT.toLocaleString()
const limitTokens = ANTHROPIC_DISPLAY_LIMIT.toLocaleString()
output.output += `\n\n${CONTEXT_REMINDER}
[Context Status: ${usedPct}% used (${usedTokens}/${limitTokens} tokens), ${remainingPct}% remaining]`

4
src/index.ts
View File

@@ -96,6 +96,10 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
},
"tool.execute.before": async (input, _output) => {
if (input.tool === "grep") {
throw new Error(`[BLOCKED] grep has no timeout and can freeze the system. It is permanently disabled. Use 'safe-grep' instead.`)
}
if (input.sessionID === mainSessionID) {
updateTerminalTitle({
sessionId: input.sessionID,