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feat(coding-agent): integrate harness evolution #105

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Merged
Pepps233 merged 4 commits into from
Aug 23, 2026
Merged

feat(coding-agent): integrate harness evolution #105

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4a2751b
feat(agent): add evolution controls
Pepps233 Aug 20, 2026
947848f
feat(coding-agent): refresh evolved harness
Pepps233 Aug 20, 2026
96eb32f
feat(coding-agent): integrate evolution runtime
Pepps233 Aug 20, 2026
e7a1064
fix(agent): report empty evolution corpus
Pepps233 Aug 20, 2026
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5 changes: 3 additions & 2 deletions packages/coding-agent/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
"description": "Coding agent CLI with read, bash, edit, write, update_plan tools and session management",
"type": "module",
"imports": {
"#evolution": "./dist/vendor/evolution/index.js",
"#harness-trace": "./dist/vendor/harness-trace/index.js"
},
"diffexConfig": {
Expand Down Expand Up @@ -38,8 +39,8 @@
"scripts": {
"clean": "shx rm -rf dist",
"build": "tsgo -p tsconfig.build.json && shx chmod +x dist/cli.js dist/rpc-entry.js && npm run copy-assets",
"build:binary": "npm --prefix ../harness-state run build && npm --prefix ../tui run build && npm --prefix ../telemetry run build && npm --prefix ../harness-trace run build && npm --prefix ../ai run build && npm --prefix ../agent run build && npm --prefix ../protocol run build && npm --prefix ../client run build && npm run build && bun build --compile --no-compile-autoload-bunfig ./dist/bun/cli.js ./src/utils/image-resize-worker.ts --outfile dist/pi && npm run copy-binary-assets",
"copy-assets": "shx mkdir -p dist/modes/interactive/theme && shx cp src/modes/interactive/theme/*.json dist/modes/interactive/theme/ && shx mkdir -p dist/modes/interactive/assets && shx cp src/modes/interactive/assets/*.png dist/modes/interactive/assets/ && shx mkdir -p dist/core/export-html/vendor && shx cp src/core/export-html/template.html src/core/export-html/template.css src/core/export-html/template.js dist/core/export-html/ && shx cp src/core/export-html/vendor/*.js dist/core/export-html/vendor/ && shx mkdir -p dist/vendor && shx cp -r ../harness-trace/dist dist/vendor/harness-trace",
"build:binary": "npm --prefix ../harness-state run build && npm --prefix ../tui run build && npm --prefix ../telemetry run build && npm --prefix ../harness-trace run build && npm --prefix ../evolution run build && npm --prefix ../ai run build && npm --prefix ../agent run build && npm --prefix ../protocol run build && npm --prefix ../client run build && npm run build && bun build --compile --no-compile-autoload-bunfig ./dist/bun/cli.js ./src/utils/image-resize-worker.ts --outfile dist/pi && npm run copy-binary-assets",
"copy-assets": "shx mkdir -p dist/modes/interactive/theme && shx cp src/modes/interactive/theme/*.json dist/modes/interactive/theme/ && shx mkdir -p dist/modes/interactive/assets && shx cp src/modes/interactive/assets/*.png dist/modes/interactive/assets/ && shx mkdir -p dist/core/export-html/vendor && shx cp src/core/export-html/template.html src/core/export-html/template.css src/core/export-html/template.js dist/core/export-html/ && shx cp src/core/export-html/vendor/*.js dist/core/export-html/vendor/ && shx mkdir -p dist/vendor && shx cp -r ../harness-trace/dist dist/vendor/harness-trace && shx cp -r ../evolution/dist dist/vendor/evolution",
"copy-binary-assets": "shx cp package.json dist/ && shx cp README.md dist/ && shx cp CHANGELOG.md dist/ && shx mkdir -p dist/theme && shx cp src/modes/interactive/theme/*.json dist/theme/ && shx mkdir -p dist/assets && shx cp src/modes/interactive/assets/*.png dist/assets/ && shx mkdir -p dist/export-html/vendor && shx cp src/core/export-html/template.html dist/export-html/ && shx cp src/core/export-html/vendor/*.js dist/export-html/vendor/ && shx cp -r docs dist/ && shx cp -r examples dist/ && shx cp ../../node_modules/@silvia-odwyer/photon-node/photon_rs_bg.wasm dist/",
"test": "vitest --run",
"shrinkwrap": "node ../../scripts/generate-coding-agent-shrinkwrap.mjs",
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27 changes: 21 additions & 6 deletions packages/coding-agent/src/core/agent-session.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1196,18 +1196,31 @@ export class AgentSession {
);
}

await this._subagentController?.reset();
const selected = await this._harnessStateStore.selectVersion(version);
this._harnessVersionBundle = selected;
this._baseSystemPrompt = this._rebuildSystemPrompt(this.getActiveToolNames());
this._systemPromptOverride = undefined;
this.agent.state.systemPrompt = this._baseSystemPrompt;
await this._notifyHarnessActivated(version);
await this._activateHarnessBundle(selected);
} finally {
this._harnessSwitchInProgress = false;
}
}

private async _activateHarnessBundle(bundle: HarnessVersionBundle): Promise<void> {
await this._subagentController?.reset();
this._harnessVersionBundle = bundle;
this._baseSystemPrompt = this._rebuildSystemPrompt(this.getActiveToolNames());
this._systemPromptOverride = undefined;
this.agent.state.systemPrompt = this._baseSystemPrompt;
await this._notifyHarnessActivated(bundle.manifest.version);
}

private async _refreshSelectedHarnessAtPromptBoundary(): Promise<void> {
if (!this._harnessStateStore) return;

const selected = await this._harnessStateStore.loadCurrent();
if (selected.manifest.version === this.activeHarnessVersion) return;

await this._activateHarnessBundle(selected);
}

/**
* Set active tools by name.
* Only tools in the registry can be enabled. Unknown tool names are ignored.
Expand Down Expand Up @@ -1646,6 +1659,8 @@ export class AgentSession {
return;
}

await this._refreshSelectedHarnessAtPromptBoundary();

// Flush any pending bash messages before the new prompt
this._flushPendingBashMessages();

Expand Down
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