$ cat ~/map/pi-dsh-minimal.md

pi-dsh-minimal

Pi extension that anchors DeepSeek V4 Pro and V4 Flash to the official DSH minimal surface (one system prompt, two tools) on the first request, then restores pi's normal tools.

extensions✓ Oct 16

Facts

repository: github.com/Averyyy/pi-dsh-minimal ↗
GitHub Stars: ★ 49
Forks: 6
license: NOASSERTION
npm / mo: —
last push: Aug 20, 2026

install

pi install npm:pi-dsh-minimal

## TL;DR

pi extension that anchors DeepSeek V4 Pro and V4 Flash to the official DeepSeek Harness minimal surface — a one-line system prompt plus persistent bash and str_replace_editor — for the first request of a session, then restores pi's normal tools.

## Key points

$Bootstrap phase (request #1 of a session, or the first request after compaction): the system prompt is exactly You are a helpful software engineer assistant. with only the official persistent bash and str_replace_editor tools — no AGENTS.md, no skill catalog. The provider payload is rewritten so the model sees the official two-tool schema.
$Promotion after the first durable assistant message or tool call (promoteOn: either): the official persona stays as the first sentence while the same request restores pi's tools, tools-guide, docs paths, project context, available skills, and other extensions' prompt additions. After compaction it falls back to bootstrap until a new promotion signal.
$Triggers automatically when the model name or id contains deepseek-v4-pro or deepseek-v4-flash (both since v0.3.1); other models are untouched unless useOnAllModels is on, and /dsh unmatch <pattern> opts a model out.
$Measured by the author on the full 113-task DeepSWE v1.1 run (2026-08-16): V4 Flash with this extension solved 69/113 (61.1%, median 24 min per task) against the official Flash leaderboard's 53% — an author-reported, single-sample result.
$/dsh opens a settings screen (enable, use-on-all-models, promote-on, model patterns, statusline) with commands like /dsh on|off and /dsh promote; the config file is ~/.pi/agent/pi-dsh-minimal.json.
$Performs no network requests and adds no telemetry; while anchored, leaked DeepSeek DSML tool-call markup in assistant text is converted to pi-native tool calls when the names are in pi's active-tool catalog, and str_replace_editor requires absolute paths.

## FAQ

Q How do I verify it is active?

Enable the extension, select DeepSeek V4 Pro, and ask for a small edit: the first thinking block should open with We need… or I need… rather than Let me…, the first request should expose only bash and str_replace_editor with the official one-line prompt, and later requests should see pi's original tools again. PI_DSH_MINIMAL_DUMP=/tmp/dsh-minimal-request.json writes the rewritten surface for inspection.

Q What happened to the v0.2.x Flash routing profile?

It was removed in v0.3.0 — a controlled DeepSWE A/B measured no lift (4/11 on vs 5/10 off), and upstream's own related-chain data showed near-field guidance was negative, so v0.3.1 enabled the anchored-standard bootstrap for Flash instead.

## References

## Related entries

Last updated: Aug 31, 2026