This skill should be used when the user asks to "look up rule", "what does SRD say", "official rules for", "exact wording", "RAW for", "rules as written", "check the SRD", "rules reference", "how does X work in d20", or needs authoritative rule clarification from the System Reference Document 5.2.
This skill inherits all available tools. When active, it can use any tool Claude has access to.
references/srd/00_Legal.mdreferences/srd/01_PlayingTheGame.mdreferences/srd/02_CharacterCreation.mdreferences/srd/03_Classes/00_Classes.mdreferences/srd/03_Classes/01_Barbarian.mdreferences/srd/03_Classes/02_Bard.mdreferences/srd/03_Classes/03_Cleric.mdreferences/srd/03_Classes/04_Druid.mdreferences/srd/03_Classes/05_Fighter.mdreferences/srd/03_Classes/06_Monk.mdreferences/srd/03_Classes/07_Paladin.mdreferences/srd/03_Classes/08_Ranger.mdreferences/srd/03_Classes/09_Rogue.mdreferences/srd/03_Classes/10_Sorcerer.mdreferences/srd/03_Classes/11_Warlock.mdreferences/srd/03_Classes/12_Wizard.mdreferences/srd/04_CharacterOrigins.mdreferences/srd/05_Feats.mdreferences/srd/06_Equipment.mdreferences/srd/07_Spells.mdProvide authoritative rule lookups from the System Reference Document 5.2 (SRD 5.2). Use the complete SRD markdown files in this skill's references directory to answer questions about official d20 5E rules.
Invoke this skill when the user:
The SRD files are located at ${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/:
| File | Contents | Size |
|---|---|---|
00_Legal.md | CC-BY-4.0 attribution (required for any derivative work) | 1KB |
01_PlayingTheGame.md | Core mechanics: abilities, D20 tests, actions, combat, damage | 62KB |
02_CharacterCreation.md | Character creation rules and process | 47KB |
03_Classes/ | Class descriptions (12 files, one per class) | 264KB |
04_CharacterOrigins.md | Backgrounds, species, and origin features | 17KB |
05_Feats.md | Feat descriptions and requirements | 8KB |
06_Equipment.md | Weapons, armor, adventuring gear, trade goods | 65KB |
07_Spells.md | All spell descriptions (A-Z) | 325KB |
08_RulesGlossary.md | Alphabetical rules definitions | 70KB |
09_GameplayToolbox.md | Optional rules and DM tools | 48KB |
10_MagicItems.md | Magic item descriptions | 218KB |
11_Monsters.md | Monster creation and CR rules | 17KB |
12_MonstersA-Z.md | All monster stat blocks (A-Z) | 333KB |
13_Animals.md | Animal stat blocks and mounts | 70KB |
For efficient searching of large SRD files, use grep with the following patterns.
Spells are organized under #### Spell Name headings. Use case-insensitive search:
# Find a specific spell (show 40 lines for full description)
grep -i -A 40 "^#### Fireball" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/07_Spells.md"
# Find a specific spell by partial name
grep -i -A 40 "^#### .*Lightning" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/07_Spells.md"
# List all spells starting with a letter
grep "^#### " "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/07_Spells.md" | grep -i "^#### A"
# Search spell descriptions for keywords (e.g., concentration spells)
grep -i -B 2 "Concentration" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/07_Spells.md" | grep -i "^####"
Monsters are organized under ## Monster Name headings:
# Find a specific monster (show 60 lines for full stat block)
grep -i -A 60 "^## Adult Red Dragon" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/12_MonstersA-Z.md"
# Find monsters by partial name
grep -i -A 60 "^## .*Zombie" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/12_MonstersA-Z.md"
# List all monsters
grep "^## " "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/12_MonstersA-Z.md"
# Find monsters by CR (search for "CR X" pattern in stat blocks)
grep -B 10 "CR 5" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/12_MonstersA-Z.md" | grep "^##"
Magic items use #### Item Name headings:
# Find a specific magic item
grep -i -A 30 "^#### Bag of Holding" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/10_MagicItems.md"
# Find all items of a rarity
grep -i -B 2 "Rare" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/10_MagicItems.md" | grep "^####"
Rules definitions use #### Term headings:
# Find a specific rule definition
grep -i -A 15 "^#### Advantage" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/08_RulesGlossary.md"
# Find rules mentioning a condition
grep -i -A 15 "^#### Frightened" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/08_RulesGlossary.md"
# List all rule definitions
grep "^#### " "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/08_RulesGlossary.md"
Each class has its own file:
# Find class features
grep -i -A 20 "^## " "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/03_Classes/05_Fighter.md"
# Search all classes for a feature name
grep -ri "Extra Attack" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/03_Classes/"
# Find weapon properties
grep -i -A 5 "^#### Heavy" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/06_Equipment.md"
# Find armor stats
grep -i -A 10 "^#### Chain Mail" "${CLAUDE_PLUGIN_ROOT}/skills/d20-rules/references/srd/06_Equipment.md"
When answering rule questions:
Example response:
From
08_RulesGlossary.md:Advantage If you have Advantage on a D20 Test, roll two d20s, and use the higher roll. A roll can't be affected by more than one Advantage, and Advantage and Disadvantage on the same roll cancel each other.
This means having multiple sources of Advantage doesn't stack - you still only roll two dice.
When quoting substantial portions of the SRD in any output, include the CC-BY-4.0 attribution from 00_Legal.md:
This work includes material from the System Reference Document 5.2 ("SRD 5.2") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.
Quick reference for which file to search:
| Question About | Search File |
|---|---|
| How combat works | 01_PlayingTheGame.md (## Combat) |
| Ability checks, saves | 01_PlayingTheGame.md (## D20 Tests) |
| Conditions (blinded, prone, etc.) | 08_RulesGlossary.md |
| Spell effect/description | 07_Spells.md |
| Monster stat block | 12_MonstersA-Z.md |
| Weapon/armor stats | 06_Equipment.md |
| Class feature | 03_Classes/[class].md |
| Magic item effect | 10_MagicItems.md |
| Rest rules | 08_RulesGlossary.md (#### Long Rest, #### Short Rest) |
| Death and dying | 01_PlayingTheGame.md (## Damage and Healing) |
| Cover, visibility | 01_PlayingTheGame.md |
| Encounter building | 09_GameplayToolbox.md |
07_Spells.md under ### Class Spell Lists11_Monsters.md13_Animals.md