feat(aio): show prompt config usage in code snippets

[jurajmajerik]

Problem

The prompt code snippets tab doesn't show how to use prompt.config, which shipped in posthog-python 7.35.0 and @posthog/ai 8.6.0.

Changes

When the llm-prompt-config flag is on and the prompt has a config, the Python and Node snippets include a line reading a model parameter from result.config, with defensive access since config is unset when the fallback is used. Prompts without a config are unchanged.

How did you test this code?

Typecheck passes. Snippet builders are plain string templates, no behavior beyond the rendered text.

🤖 Agent context

Autonomy: Human-driven (agent-assisted)

Written with Claude Code. Follow-up to #75423, per the prompt config rollout plan. /writing-user-facing-copy invoked for the snippet text.

[trunk-io]

😎 This pull request was merged.

[github-actions]

🦔 Hogbox preview · ✅ ready

▶ Open the preview

🔑 Login	test@posthog.com / 12345678 (demo data)
🧩 Running	this PR's backend and frontend, on the PostHog :master base
🔗 Link	stable across rebuilds — a re-push swaps the box underneath, the URL stays
🔒 Access	tailnet only (PostHog VPN)
🛠️ Admin	inspect & debug state in hogland
💤 Idle	sleeps after ~30 min idle (snapshot to S3, zero node cost) and wakes on your next visit in ~30s, behind a brief "waking up" screen

_{commit f554c1d · box box-cc1fb4056a49 · ready in 927s (push → usable) · build log · rebuilds on every push, torn down on close}

[greptile-apps]

_{Reviews (1): Last reviewed commit: "feat(aio): show prompt config usage in c..." | Re-trigger Greptile}

[github-actions]

🤖 CI report

⚠️ Bundle size — 🔺 +287 B (+0.0%)

Uncompressed size of every built .js bundle, compared against the base branch.

Total: 65.35 MiB · 🔺 +287 B (+0.0%)

No file changed by more than 1000 B.

_{Posted automatically by build-bundle-size-report · uncompressed bytes from dist-report}

✅ Eager graph — within budget

How much code each root ships on the eager path — downloaded and parsed before the surface is interactive. Measured from the esbuild output chunks (post-tree-shake, static imports only); lazy import() / React.lazy chunks are not counted.

Root	Eager (shipped)	Δ vs base	Budget
entry (logged-out pages, app bootstrap) src/index.tsx	1.25 MiB · 22 files	no change	███░░░░░░░ 27.7% of 4.51 MiB
authenticated shell (every logged-in page) src/scenes/AuthenticatedShell.tsx	8.11 MiB · 3,021 files	no change	████████░░ 83.5% of 9.71 MiB

🟢 node_modules/monaco-editor/ stays out of src/index.tsx
🟢 src/lib/components/ActivityLog/describers stays out of src/index.tsx
🟢 [object Object] stays out of src/index.tsx
🟢 [object Object] stays out of src/index.tsx
🟢 node_modules/monaco-editor/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/lib/components/ActivityLog/describers stays out of src/scenes/AuthenticatedShell.tsx
🟢 [object Object] stays out of src/scenes/AuthenticatedShell.tsx
🟢 [object Object] stays out of src/scenes/AuthenticatedShell.tsx

Largest files eagerly shipped from src/index.tsx

Size	File
126.8 KiB	../node_modules/.pnpm/react-dom@18.3.1_react@18.3.1/node_modules/react-dom/cjs/react-dom.production.min.js
24.6 KiB	../node_modules/.pnpm/buffer@6.0.3/node_modules/buffer/index.js
6.3 KiB	../node_modules/.pnpm/react@18.3.1/node_modules/react/cjs/react.production.min.js
4.5 KiB	../node_modules/.pnpm/@jspm+core@2.1.0/node_modules/@jspm/core/nodelibs/browser/process.js
3.9 KiB	../node_modules/.pnpm/scheduler@0.23.2/node_modules/scheduler/cjs/scheduler.production.min.js
1.4 KiB	../node_modules/.pnpm/base64-js@1.5.1/node_modules/base64-js/index.js
1.3 KiB	src/RootErrorBoundary.tsx
912 B	../node_modules/.pnpm/ieee754@1.2.1/node_modules/ieee754/index.js
789 B	src/scenes/ChunkLoadErrorBoundary.tsx
762 B	src/index.tsx

Largest files eagerly shipped from src/scenes/AuthenticatedShell.tsx

Size	File
285.3 KiB	../node_modules/.pnpm/posthog-js@1.409.0/node_modules/posthog-js/dist/rrweb.js
267.7 KiB	../node_modules/.pnpm/@posthog+icons@0.38.0_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@posthog/icons/dist/posthog-icons.es.js
235.5 KiB	src/taxonomy/core-filter-definitions-by-group.json
226.9 KiB	../node_modules/.pnpm/posthog-js@1.409.0/node_modules/posthog-js/dist/module.js
154.3 KiB	../node_modules/.pnpm/re2js@0.4.1/node_modules/re2js/build/index.esm.js
126.8 KiB	../node_modules/.pnpm/react-dom@18.3.1_react@18.3.1/node_modules/react-dom/cjs/react-dom.production.min.js
105.2 KiB	src/lib/api.ts
94.7 KiB	../packages/quill/packages/quill/dist/index.js
93.3 KiB	../node_modules/.pnpm/prosemirror-view@1.40.1/node_modules/prosemirror-view/dist/index.js
90.6 KiB	../node_modules/.pnpm/@tiptap+core@3.20.6_@tiptap+pm@3.20.6/node_modules/@tiptap/core/dist/index.js

_{Posted automatically by check-eager-graph · sizes are eager output bytes (shipped, post-tree-shake) from the esbuild metafile · part of #32479}

✅ Toolbar bundle — eager 2.19 MiB within budget

What the toolbar ships to customer pages, measured from the esbuild output (minified, post-tree-shake). The eager set is the entry plus everything statically imported from it — fetched before any feature runs; deferred chunks load lazily. The eager guardrail is 5.72 MiB. Each output file must also stay below 10 MB, where CloudFront stops compressing it. The module boundary is enforced separately by check-toolbar-graph.

Metric	Size	Δ vs base	Budget
Eager (shipped) entry + static imports	2.19 MiB · 17 files	no change	████░░░░░░ 38.2% of 5.72 MiB
Deferred (lazy)	2.07 MiB · 33 files	no change	n/a — loads on demand
Loader dist/toolbar.js	1.1 KiB	no change	█░░░░░░░░░ 5.8% of 19.5 KiB

Largest eagerly-shipped chunks

Size	File
717.7 KiB	dist/toolbar/toolbar-app-NOGOCMN4.css
546.6 KiB	dist/toolbar/chunk-chunk-45CC4NVD.js
484.4 KiB	dist/toolbar/chunk-chunk-J6LEKXMR.js
133.6 KiB	dist/toolbar/chunk-chunk-INYNBXIO.js
131.8 KiB	dist/toolbar/chunk-chunk-T5KY5WYR.js
71.0 KiB	dist/toolbar/toolbar-app-IXFB6SXZ.js
69.0 KiB	dist/toolbar/chunk-chunk-27JL52RE.js
35.6 KiB	dist/toolbar/chunk-chunk-W55RZ5CW.js
20.9 KiB	dist/toolbar/chunk-chunk-BTBOG7BH.js
12.2 KiB	dist/toolbar/chunk-chunk-PIK3PADE.js

_{Posted automatically by check-toolbar-size · sizes are toolbar output bytes (shipped, post-tree-shake) from the esbuild metafile}

✅ Dist folder size — 🔺 +1.6 KiB (+0.0%)

Total size of the built frontend/dist folder (all assets), compared against the base branch.

Total: 1370.55 MiB · 🔺 +1.6 KiB (+0.0%)

[stamphog]

Small additive change to frontend code-snippet text generation, gated behind a feature flag with no effect on existing prompts; not risky territory, and author has strong familiarity with this file plus a positive bot review reaction.

• Author wrote 100% of the modified lines and has 20 merged PRs in these paths (familiarity STRONG).
• 👍 on the PR from greptile-apps[bot], hex-security-app[bot].

Gate mechanics and policy version

Gate		Result
prerequisites	✓	all clear
deny-list	✓	no deny categories matched
size	✓	36L, 1F substantive — within ceiling
tier	✓	T1-agent / T1b-small (36L, 1F, single-area, feat)
stamphog 2.0.0b3		.stamphog/policy.yml @ 3d4d8c4 · reviewed head f554c1d

[deployment-status-posthog]

Deploy status

Environment	Status	Deployed At	Workflow
dev	✅ Deployed	2026-07-31 06:24 UTC	Run
prod-us	✅ Deployed	2026-07-31 06:38 UTC	Run
prod-eu	✅ Deployed	2026-07-31 06:41 UTC	Run