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Merge pull request #234 from Opencode-DCP/dev
merge dev into master
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‎README.md‎

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@@ -75,6 +75,9 @@ DCP uses its own config file:
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"enabled": false,
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"turns": 4,
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},
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// Protect file operations from pruning via glob patterns
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// Patterns match tool parameters.filePath (e.g. read/write/edit)
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"protectedFilePatterns": [],
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// LLM-driven context pruning tools
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"tools": {
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// Shared settings for all prune tools
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Restart OpenCode after making config changes.
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## Limitations
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**Subagents** — DCP is disabled for subagents. Subagents are not designed to be token efficient; what matters is that the final message returned to the main agent is a concise summary of findings. DCP's pruning could interfere with this summarization behavior.
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## License
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MIT

‎dcp.schema.json‎

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@@ -0,0 +1,207 @@
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"$id": "https://raw.githubusercontent.com/Opencode-DCP/opencode-dynamic-context-pruning/main/dcp.schema.json",
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"title": "DCP Plugin Configuration",
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"description": "Configuration schema for the OpenCode Dynamic Context Pruning plugin",
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"$schema": {
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"type": "string",
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"description": "JSON Schema reference for IDE autocomplete"
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},
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"enabled": {
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"type": "boolean",
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"default": true,
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"description": "Enable or disable the DCP plugin"
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},
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"debug": {
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"type": "boolean",
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"default": false,
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"description": "Enable debug logging"
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},
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"pruneNotification": {
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"type": "string",
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"enum": ["off", "minimal", "detailed"],
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"default": "detailed",
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"description": "Level of notification shown when pruning occurs"
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},
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"turnProtection": {
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"type": "object",
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"description": "Protect recent tool outputs from being pruned",
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"additionalProperties": false,
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"properties": {
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"enabled": {
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"type": "boolean",
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"default": false,
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"description": "Enable turn-based protection"
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},
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"turns": {
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"type": "number",
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"default": 4,
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"description": "Number of recent turns to protect from pruning"
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}
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}
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},
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"protectedFilePatterns": {
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"type": "array",
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"items": {
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"type": "string"
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},
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"default": [],
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"description": "Glob patterns for files that should be protected from pruning (e.g., '**/*.config.ts')"
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},
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"tools": {
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"type": "object",
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"description": "Configuration for pruning tools",
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"additionalProperties": false,
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"properties": {
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"settings": {
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"type": "object",
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"description": "General tool settings",
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"additionalProperties": false,
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"properties": {
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"nudgeEnabled": {
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"type": "boolean",
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"default": true,
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"description": "Enable nudge reminders to prune context"
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},
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"nudgeFrequency": {
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"type": "number",
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"default": 10,
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"description": "Frequency of nudge reminders (in turns)"
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},
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"protectedTools": {
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"type": "array",
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"items": {
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"type": "string"
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},
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"default": [
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"task",
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"todowrite",
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"todoread",
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"discard",
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"extract",
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"batch",
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"write",
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"edit"
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],
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"description": "Tool names that should be protected from automatic pruning"
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}
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}
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},
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"discard": {
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"type": "object",
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"description": "Configuration for the discard tool",
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"additionalProperties": false,
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"properties": {
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"enabled": {
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"type": "boolean",
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"default": true,
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"description": "Enable the discard tool"
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}
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}
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},
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"extract": {
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"type": "object",
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"description": "Configuration for the extract tool",
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"additionalProperties": false,
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"properties": {
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"enabled": {
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"type": "boolean",
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"default": true,
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"description": "Enable the extract tool"
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},
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"showDistillation": {
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"type": "boolean",
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"default": false,
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"description": "Show distillation output in the UI"
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}
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}
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}
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}
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},
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"strategies": {
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"type": "object",
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"description": "Automatic pruning strategies",
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"additionalProperties": false,
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"properties": {
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"deduplication": {
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"type": "object",
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"description": "Remove duplicate tool outputs",
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"additionalProperties": false,
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"properties": {
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"enabled": {
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"type": "boolean",
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"default": true,
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"description": "Enable deduplication strategy"
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},
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"protectedTools": {
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"type": "array",
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"items": {
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"type": "string"
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},
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"default": [
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"task",
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"todowrite",
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"todoread",
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"discard",
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"extract",
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"batch",
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"write",
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"edit"
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],
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"description": "Tool names excluded from deduplication"
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}
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}
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},
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"supersedeWrites": {
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"type": "object",
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"description": "Replace older write/edit outputs when new ones target the same file",
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"additionalProperties": false,
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"properties": {
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"enabled": {
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"type": "boolean",
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"default": false,
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"description": "Enable supersede writes strategy"
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}
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}
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},
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"purgeErrors": {
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"type": "object",
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"description": "Remove tool outputs that resulted in errors",
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"additionalProperties": false,
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"properties": {
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"enabled": {
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"type": "boolean",
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"default": true,
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"description": "Enable purge errors strategy"
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},
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"turns": {
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"type": "number",
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"default": 4,
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"description": "Number of turns after which errors are purged"
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},
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"protectedTools": {
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"type": "array",
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"items": {
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"type": "string"
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},
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"default": [
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"task",
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"todowrite",
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"todoread",
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"discard",
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"extract",
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"batch",
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"write",
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"edit"
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],
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"description": "Tool names excluded from error purging"
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}
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}
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}
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}
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}
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}
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}

‎lib/config.ts‎

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@@ -50,6 +50,7 @@ export interface PluginConfig {
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debug: boolean
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pruneNotification: "off" | "minimal" | "detailed"
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turnProtection: TurnProtection
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protectedFilePatterns: string[]
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tools: Tools
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strategies: {
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deduplication: Deduplication
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"turnProtection",
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"turnProtection.enabled",
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"turnProtection.turns",
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"protectedFilePatterns",
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"tools",
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"tools.settings",
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"tools.settings.nudgeEnabled",
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}
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}
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if (config.protectedFilePatterns !== undefined) {
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if (!Array.isArray(config.protectedFilePatterns)) {
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errors.push({
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key: "protectedFilePatterns",
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expected: "string[]",
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actual: typeof config.protectedFilePatterns,
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})
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} else if (!config.protectedFilePatterns.every((v) => typeof v === "string")) {
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errors.push({
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key: "protectedFilePatterns",
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expected: "string[]",
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actual: "non-string entries",
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})
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}
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}
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// Top-level turnProtection validator
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if (config.turnProtection) {
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if (
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enabled: false,
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turns: 4,
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},
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protectedFilePatterns: [],
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tools: {
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settings: {
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nudgeEnabled: true,
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}
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const configContent = `{
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"$schema": "https://raw.githubusercontent.com/Opencode-DCP/opencode-dynamic-context-pruning/main/dcp.schema.json",
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// Enable or disable the plugin
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"enabled": true,
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// Enable debug logging to ~/.config/opencode/logs/dcp/
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"enabled": false,
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"turns": 4
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},
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// Protect file operations from pruning via glob patterns
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// Patterns match tool parameters.filePath (e.g. read/write/edit)
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"protectedFilePatterns": [],
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// LLM-driven context pruning tools
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"tools": {
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// Shared settings for all prune tools
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return {
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...config,
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turnProtection: { ...config.turnProtection },
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protectedFilePatterns: [...config.protectedFilePatterns],
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tools: {
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settings: {
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...config.tools.settings,
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enabled: result.data.turnProtection?.enabled ?? config.turnProtection.enabled,
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turns: result.data.turnProtection?.turns ?? config.turnProtection.turns,
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},
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protectedFilePatterns: [
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...new Set([
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...config.protectedFilePatterns,
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...(result.data.protectedFilePatterns ?? []),
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]),
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],
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tools: mergeTools(config.tools, result.data.tools as any),
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strategies: mergeStrategies(config.strategies, result.data.strategies as any),
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}
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enabled: result.data.turnProtection?.enabled ?? config.turnProtection.enabled,
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turns: result.data.turnProtection?.turns ?? config.turnProtection.turns,
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},
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protectedFilePatterns: [
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...new Set([
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...config.protectedFilePatterns,
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...(result.data.protectedFilePatterns ?? []),
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]),
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],
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tools: mergeTools(config.tools, result.data.tools as any),
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strategies: mergeStrategies(config.strategies, result.data.strategies as any),
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}
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enabled: result.data.turnProtection?.enabled ?? config.turnProtection.enabled,
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turns: result.data.turnProtection?.turns ?? config.turnProtection.turns,
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},
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protectedFilePatterns: [
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...new Set([
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...config.protectedFilePatterns,
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...(result.data.protectedFilePatterns ?? []),
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]),
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],
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tools: mergeTools(config.tools, result.data.tools as any),
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strategies: mergeStrategies(config.strategies, result.data.strategies as any),
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}

‎lib/messages/inject.ts‎

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import type { UserMessage } from "@opencode-ai/sdk/v2"
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import { loadPrompt } from "../prompts"
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import { extractParameterKey, buildToolIdList, createSyntheticUserMessage } from "./utils"
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import { getFilePathFromParameters, isProtectedFilePath } from "../protected-file-patterns"
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import { getLastUserMessage } from "../shared-utils"
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const getNudgeString = (config: PluginConfig): string => {
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return
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}
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const filePath = getFilePathFromParameters(toolParameterEntry.parameters)
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if (isProtectedFilePath(filePath, config.protectedFilePatterns)) {
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return
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}
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const numericId = toolIdList.indexOf(toolCallId)
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if (numericId === -1) {
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logger.warn(`Tool in cache but not in toolIdList - possible stale entry`, {

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