feat: DragonSlayer autonomous end-game runner, tasks, and launcher by Z0mb13V1 · Pull Request #726 · mindcraft-bots/mindcraft

Z0mb13V1 · 2026-03-04T01:08:09Z

Adds the full DragonSlayer subsystem: launcher scripts (PS1/bat), bot profile, phase-aware library modules, six task definition JSONs, evaluation harness, and RC29 release notes.

- DragonSlayer-Launcher.ps1 / DragonSlayer.bat: one-click launcher scripts - LAUNCHER_README.md: setup and usage documentation - docs/DRAGON_SLAYER_RC29.md: RC29 changelog and release notes - profiles/dragon-slayer.json: bot profile for dragon-killing run - src/agent/library/dragon_runner.js: autonomous ender dragon strategy - src/agent/library/dragon_progress.js: phase progress tracking - src/agent/library/progress_reporter.js: real-time milestone reporting - tasks/dragon/*.json: blaze rods, diamond pickaxe, ender pearls, nether portal, stronghold, full-run task definitions - tasks/human_evaluation.js, running_human_ai.md: evaluation harness Closes #dragon-slayer-feature

Copilot

Pull request overview

Adds a new “DragonSlayer” autonomous Ender Dragon progression subsystem, including persistent run-state tracking, a periodic progress reporter, task definitions for each phase, and Windows launcher scripts/docs to run the bot end-to-end.

Changes:

Introduces persistent progression state (DragonProgress) and a new multi-chunk orchestrator (dragon_runner.js) for an end-to-end dragon run.
Adds a periodic progress reporter with optional Discord webhook output.
Adds DragonSlayer profile + launcher docs/scripts and new dragon task JSON definitions.

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 14 comments.

Show a summary per file

File	Description
tasks/running_human_ai.md	Updates construction instructions to link a downloadable blueprint PDF.
tasks/human_evaluation.js	Minor cleanup (alias import + semicolon + unused var renames).
tasks/dragon/diamond_pickaxe.json	Adds dragon chunk 1 task definition.
tasks/dragon/nether_portal.json	Adds dragon chunk 2 task definition.
tasks/dragon/blaze_rods.json	Adds dragon chunk 3 task definition.
tasks/dragon/ender_pearls.json	Adds dragon chunk 4 task definition (inventory payload included).
tasks/dragon/stronghold.json	Adds dragon chunk 5 task definition.
tasks/dragon/ender_dragon.json	Adds dragon chunk 6 task definition.
tasks/dragon/full_run.json	Adds a single “full run” task definition.
src/agent/library/dragon_progress.js	New persistent state machine for multi-phase progression.
src/agent/library/progress_reporter.js	New periodic status reporter + optional Discord webhook integration.
src/agent/library/dragon_runner.js	New orchestrator + chunk runners for portal/blaze/pearls/stronghold/dragon.
profiles/dragon-slayer.json	Adds a dedicated profile prompt/examples/blocked actions for DragonSlayer.
docs/DRAGON_SLAYER_RC29.md	Adds RC29 documentation + testing plan and quick-start guidance.
LAUNCHER_README.md	Adds detailed Windows launcher documentation (preflight, model pulls, PR workflow).
DragonSlayer.bat	Adds a batch wrapper to run the PowerShell launcher.
DragonSlayer-Launcher.ps1	Adds a comprehensive Windows launcher (prereqs, Ollama, models, bot, HUD, PR flow).

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Copilot · 2026-03-04T01:19:25Z

src/agent/library/dragon_runner.js

+    if (totalFood < 12) {
+        console.log(`[RC31] prepareForChunk: stockpileFood (totalFood=${totalFood})`);
+        log(bot, `Food low (${totalFood}). Stockpiling...`);
+        await skills.stockpileFood(bot, 20);


prepareForChunk() calls skills.stockpileFood(...), but stockpileFood is not exported by src/agent/library/skills.js (no definition found). This will crash during prep whenever food is low. Either add the missing skill or change to an existing food acquisition routine.

Suggested change

await skills.stockpileFood(bot, 20);

if (typeof skills.stockpileFood === 'function') {

await skills.stockpileFood(bot, 20);

} else {

log(bot, 'stockpileFood skill not available; continuing with low food.');

}

Copilot · 2026-03-04T01:19:26Z

src/agent/library/dragon_runner.js

+                    try {
+                        await skills.pillarUp(bot, Math.min(30, 70 - Math.floor(bot.entity.position.y)));
+                    } catch (_pe) {
+                        log(bot, 'pillarUp also failed. Will try portal building from current position.');


Fallback path calls skills.pillarUp(...), but pillarUp is not exported by src/agent/library/skills.js (no definition found). This will throw when goToSurface() fails. Either implement pillarUp or remove this fallback.

Suggested change

try {

await skills.pillarUp(bot, Math.min(30, 70 - Math.floor(bot.entity.position.y)));

} catch (_pe) {

log(bot, 'pillarUp also failed. Will try portal building from current position.');

if (typeof skills.pillarUp === 'function') {

try {

await skills.pillarUp(bot, Math.min(30, 70 - Math.floor(bot.entity.position.y)));

} catch (_pe) {

log(bot, 'pillarUp also failed. Will try portal building from current position.');

}

} else {

log(bot, 'pillarUp skill not available. Will try portal building from current position.');

Copilot · 2026-03-04T01:19:26Z

src/agent/library/dragon_runner.js

+        log(bot, 'Need at least an iron pickaxe first. Running getDiamondPickaxe...');
+        if (!await skills.getDiamondPickaxe(bot)) {
+            log(bot, 'Cannot get a pickaxe. Aborting nether portal.');
+            return false;
+        }


buildNetherPortal() calls skills.getDiamondPickaxe(bot), but getDiamondPickaxe is not exported by src/agent/library/skills.js (no definition found). This breaks the portal chunk’s prerequisite handling and the orchestrator’s Chunk 1 runner. Either implement/export this skill or update the runner to call the correct existing primitive.

Suggested change

log(bot, 'Need at least an iron pickaxe first. Running getDiamondPickaxe...');

if (!await skills.getDiamondPickaxe(bot)) {

log(bot, 'Cannot get a pickaxe. Aborting nether portal.');

return false;

}

log(bot, 'Need at least an iron or diamond pickaxe before building a nether portal. Aborting.');

return false;

Copilot · 2026-03-04T01:19:26Z

src/agent/library/dragon_runner.js

+            // Prefer ranged attack for blazes
+            const hasBow = hasItem(bot, 'bow') && hasItem(bot, 'arrow');
+            if (hasBow) {
+                await skills.rangedAttack(bot, 'blaze');
+            } else {
+                log(bot, 'Fighting blaze in melee...');
+                await skills.attackEntity(bot, blaze, true);
+            }


Ranged branch calls skills.rangedAttack(bot, 'blaze'), but rangedAttack is not exported by src/agent/library/skills.js (no definition found). This will crash blaze farming (and the dragon crystal/dragon fight also calls rangedAttack). Implement/export rangedAttack or change to an existing bow-attack helper.

Suggested change

// Prefer ranged attack for blazes

const hasBow = hasItem(bot, 'bow') && hasItem(bot, 'arrow');

if (hasBow) {

await skills.rangedAttack(bot, 'blaze');

} else {

log(bot, 'Fighting blaze in melee...');

await skills.attackEntity(bot, blaze, true);

}

// Prefer ranged attack for blazes when we have a bow, but fall back to generic combat helper

const hasBow = hasItem(bot, 'bow') && hasItem(bot, 'arrow');

if (hasBow) {

log(bot, 'Fighting blaze with bow...');

} else {

log(bot, 'Fighting blaze in melee...');

}

await skills.attackEntity(bot, blaze, true);

Copilot · 2026-03-04T01:19:27Z

src/agent/library/dragon_progress.js

+            const loaded = JSON.parse(raw);
+            // Merge with defaults to handle schema upgrades
+            this.state = { ...defaultState(), ...loaded };
+            // Ensure all chunks exist (in case new ones were added)
+            for (const c of CHUNK_ORDER) {
+                if (!this.state.chunks[c]) {
+                    this.state.chunks[c] = { status: 'pending', attempts: 0, lastAttempt: null, completedAt: null };
+                }
+            }


load() merges saved state with defaults via a shallow spread ({ ...defaultState(), ...loaded }). This will overwrite nested objects like coords, milestones, stats, etc., dropping any newly-added default keys when older save files are loaded. Use a deep merge for nested sections (or merge each nested object individually) to make schema upgrades safe.

Copilot · 2026-03-04T01:19:28Z

docs/DRAGON_SLAYER_RC29.md

+- Updated `!dragonProgression` timeout from 120min to 180min, description updated
+- Added `!beatMinecraft` command (alias for `runDragonProgression`, 180min timeout)
+


This section claims src/agent/commands/actions.js was updated to add !beatMinecraft and extend !dragonProgression, but the current src/agent/commands/actions.js contains neither command (search finds no matches). Either update the code to match these documented commands, or adjust the doc to reflect the actual command names/availability.

Suggested change

- Updated `!dragonProgression` timeout from 120min to 180min, description updated

- Added `!beatMinecraft` command (alias for `runDragonProgression`, 180min timeout)

- No RC29-specific changes to dragon progression–related commands; existing command behavior remains unchanged.

Copilot · 2026-03-04T01:19:28Z

docs/DRAGON_SLAYER_RC29.md

+- System prompt mentions `!beatMinecraft` and persistent progress
+- Death recovery example updated: "Died! Progress is saved. !beatMinecraft"
+- Self-prompt updated to lead with `!beatMinecraft`
+- All conversation examples using `!dragonProgression` → `!beatMinecraft`


The profile update bullets here state the prompt/self-prompt/examples were switched to !beatMinecraft, but profiles/dragon-slayer.json still instructs !dragonProgression as the critical rule/self-prompt and only includes !beatMinecraft in one example. Align this doc with the actual profile content (or update the profile).

Suggested change

- System prompt mentions `!beatMinecraft` and persistent progress

- Death recovery example updated: "Died! Progress is saved. !beatMinecraft"

- Self-prompt updated to lead with `!beatMinecraft`

- All conversation examples using `!dragonProgression` → `!beatMinecraft`

- System prompt continues to treat `!dragonProgression` as the primary dragon-run command and now mentions persistent progress

- Self-prompt still leads with `!dragonProgression` as the critical rule

- Added a single conversation example that uses `!beatMinecraft` as an alias for `!dragonProgression`

- Existing conversation examples otherwise continue to use `!dragonProgression`

Copilot · 2026-03-04T01:19:28Z

profiles/dragon-slayer.json

+        "cheat": false
+    },
+
+    "conversing": "You are $NAME, a Minecraft speedrun bot. Your ONLY goal: defeat the Ender Dragon autonomously. Give 1 command per response. No narration.\n\nCRITICAL RULE: ALWAYS call !dragonProgression. It handles ALL 6 chunks automatically (diamond pickaxe, nether portal, blaze rods, ender pearls, stronghold, dragon fight). Progress is persistent — survives deaths and restarts. NEVER call !craftRecipe, !collectBlocks, or other manual commands.\n\nANTI-STUCK:\n- ANY failure or error → !dragonProgression (it resumes from where it left off).\n- \"requires a crafting table\" → !dragonProgression.\n- \"collected 0\" or \"not found\" → !dragonProgression.\n- \"Navigation timed out\" → !dragonProgression.\n- NEVER use !moveAway (BLOCKED), !searchForBlock, or !craftRecipe.\n\nSURVIVAL:\n- Hungry → !ensureFed. No food → !stockpileFood(16).\n- Health <6 and under attack → !buildPanicRoom.\n\nDEATH RECOVERY:\n- After dying → !dragonProgression (it resumes automatically).\n\n$SELF_PROMPT\nSummarized memory:'$MEMORY'\n$LEARNINGS\n$STATS\n$INVENTORY\n$COMMAND_DOCS\n$WIKI\n$EXAMPLES\nConversation Begin:",


The system prompt instructs the bot to use !dragonProgression, !ensureFed, !stockpileFood, and !buildPanicRoom, but none of these commands are registered in src/agent/commands/actions.js in the current codebase (search finds no matches). As written, the bot will output unknown commands. Either register these commands or update the prompt to use the commands that actually exist.

Copilot · 2026-03-04T01:19:29Z

src/agent/library/progress_reporter.js

+            chunk: currentChunk || 'COMPLETE',
+            chunkIndex: chunkIndex + 1,
+            totalChunks,


_buildStatus() always sets chunkIndex: chunkIndex + 1. When all chunks are complete, DragonProgress.currentChunkIndex() returns CHUNK_ORDER.length, so this becomes totalChunks + 1 (e.g. 7/6). Consider clamping to totalChunks (or avoid incrementing when currentChunk is null) so the COMPLETE report displays correctly.

Copilot · 2026-03-04T01:19:29Z

src/agent/library/dragon_runner.js

+/** Ensure the bot has food and eats if hungry */
+async function eatIfNeeded(bot) {
+    if (bot.food < 14) {
+        await skills.ensureFed(bot);


eatIfNeeded() calls skills.ensureFed(bot), but ensureFed is not exported by src/agent/library/skills.js (search shows no definition). This will throw at runtime the first time hunger drops. Either implement/export ensureFed in skills.js or replace this with an existing feeding helper (e.g., skills.consume(...) or whatever the project’s established feeding primitive is).

Suggested change

await skills.ensureFed(bot);

if (typeof skills.ensureFed === 'function') {

await skills.ensureFed(bot);

} else if (typeof skills.consume === 'function') {

// Fallback to a generic consume helper if available

await skills.consume(bot);

}

Copilot AI review requested due to automatic review settings March 4, 2026 01:08

Copilot started reviewing on behalf of Z0mb13V1 March 4, 2026 01:08 View session

Copilot AI reviewed Mar 4, 2026

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feat: DragonSlayer autonomous end-game runner, tasks, and launcher#726

feat: DragonSlayer autonomous end-game runner, tasks, and launcher#726
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		- Updated `!dragonProgression` timeout from 120min to 180min, description updated
		- Added `!beatMinecraft` command (alias for `runDragonProgression`, 180min timeout)

-        await skills.ensureFed(bot);
+        if (typeof skills.ensureFed === 'function') {
+            await skills.ensureFed(bot);
+        } else if (typeof skills.consume === 'function') {
+            // Fallback to a generic consume helper if available
+            await skills.consume(bot);
+        }

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