/fetch:docs-claire

Fetch latest Claude Code documentation from official docs site and cache locally for claire agents.

ARGUMENT SPECIFICATION

SYNTAX: /fetch:docs-claire [--force] [doc-name]

OPTIONAL:
  --force
    Type: flag
    Default: false
    Purpose: Force refresh even if cache is fresh

  [doc-name]
    Type: enum[skills, plugins, hooks-guide, sub-agents, slash-commands]
    Default: (all docs)
    Purpose: Fetch specific doc only

EXECUTION PROTOCOL

Execute steps sequentially. Each step must complete successfully before proceeding.

STEP 1: PARSE ARGUMENTS

PARSE:

FORCE_REFRESH=false
TARGET_DOC="all"

for arg in "$@"; do
    if [ "$arg" = "--force" ]; then
        FORCE_REFRESH=true
    elif [ "$arg" != "--force" ]; then
        TARGET_DOC="$arg"
    fi
done

VALIDATION:

• IF TARGET_DOC not in [all, skills, plugins, hooks-guide, sub-agents, slash-commands] → ERROR PATTERN "invalid-doc-name"

NEXT:

• On success → STEP 2
• On failure → ABORT

STEP 2: ENSURE CACHE DIRECTORY EXISTS

EXECUTE:

CACHE_DIR="claire/docs-cache"
test -d "$CACHE_DIR"
DIR_EXISTS=$?

if [ $DIR_EXISTS -ne 0 ]; then
    mkdir -p "$CACHE_DIR"
    MKDIR_EXIT=$?
fi

VALIDATION:

• IF mkdir fails → ERROR PATTERN "cache-dir-creation-failed"

DATA:

• CACHE_DIR = "claire/docs-cache"

NEXT:

• On success → STEP 3
• On failure → ABORT

STEP 3: READ DOCS INDEX

EXECUTE:

INDEX_FILE="claire/docs-index.json"
test -f "$INDEX_FILE"
INDEX_EXISTS=$?

if [ $INDEX_EXISTS -eq 0 ]; then
    INDEX_JSON=$(cat "$INDEX_FILE" 2>&1)
    CAT_EXIT=$?
else
    INDEX_JSON="{}"
    CAT_EXIT=0
fi

VALIDATION:

• IF INDEX_EXISTS == 0 AND CAT_EXIT != 0 → ERROR PATTERN "index-read-failed"

PARSE INDEX:

{
  "skills": {
    "url": "https://code.claude.com/docs/en/skills",
    "lastFetched": "2025-11-23T12:34:56Z"
  },
  "sub-agents": {
    "url": "https://code.claude.com/docs/en/sub-agents",
    "lastFetched": "2025-11-23T10:00:00Z"
  },
  ...
}

DOC LIST:

• skills
• plugins
• hooks-guide
• sub-agents
• slash-commands

NEXT:

• On success → STEP 4
• On failure with empty JSON → STEP 4 (will fetch all)

STEP 4: DETERMINE WHICH DOCS TO FETCH

ALGORITHM:

docs_to_fetch = []

if TARGET_DOC == "all":
    check_all_docs = ["skills", "plugins", "hooks-guide", "sub-agents", "slash-commands"]
else:
    check_all_docs = [TARGET_DOC]

for doc_name in check_all_docs:
    cache_file = f"{CACHE_DIR}/{doc_name}.md"

    if FORCE_REFRESH:
        docs_to_fetch.append(doc_name)
        status[doc_name] = "force refresh"
    elif not file_exists(cache_file):
        docs_to_fetch.append(doc_name)
        status[doc_name] = "not cached"
    else:
        file_age = current_time - file_mtime(cache_file)
        if file_age > 86400:  # 24 hours in seconds
            docs_to_fetch.append(doc_name)
            status[doc_name] = "cache expired"
        else:
            status[doc_name] = "cached, fresh"

CACHE LIFETIME: 24 hours (86400 seconds)

OUTPUT:

• docs_to_fetch = list of doc names that need fetching
• status = dict of doc_name → status string

NEXT:

• IF docs_to_fetch is empty → STEP 7 (all fresh, skip fetching)
• IF docs_to_fetch not empty → STEP 5

STEP 5: FETCH DOCUMENTATION

FOR EACH doc_name in docs_to_fetch:

URL=$(jq -r ".\"$doc_name\".url" "$INDEX_FILE" 2>/dev/null)
if [ -z "$URL" ] || [ "$URL" = "null" ]; then
    # Construct default URL
    URL="https://code.claude.com/docs/en/${doc_name}"
fi

# Fetch using WebFetch
WebFetch(
    url="$URL",
    prompt="Return the full documentation content as markdown. Include all sections, examples, and code blocks."
)

FETCH_EXIT=$?

VALIDATION:

• IF FETCH_EXIT != 0 → ERROR PATTERN "fetch-failed" (non-fatal, continue with others)
• IF content is empty → ERROR PATTERN "empty-response" (non-fatal)

SAVE TO CACHE:

if [ $FETCH_EXIT -eq 0 ] && [ -n "$CONTENT" ]; then
    echo "$CONTENT" > "$CACHE_DIR/${doc_name}.md"
    WRITE_EXIT=$?

    if [ $WRITE_EXIT -eq 0 ]; then
        fetched_count=$((fetched_count + 1))
        status[doc_name]="✓ fetched"
    else
        status[doc_name]="✗ write failed"
    fi
else
    status[doc_name]="✗ fetch failed"
fi

NEXT:

• Continue with next doc in list
• After all processed → STEP 6

STEP 6: UPDATE METADATA

EXECUTE:

METADATA_FILE="$CACHE_DIR/.metadata.json"
CURRENT_TIME=$(date -u +"%Y-%m-%dT%H:%M:%SZ")

# Update metadata for each successfully fetched doc
for doc_name in successfully_fetched:
    jq ".\"$doc_name\".lastFetched = \"$CURRENT_TIME\"" "$METADATA_FILE" > tmp.json
    mv tmp.json "$METADATA_FILE"
done

CREATE/UPDATE INDEX:

{
  "doc-name": {
    "url": "https://...",
    "lastFetched": "2025-11-24T12:00:00Z",
    "size": 12345
  }
}

NEXT:

• On success → STEP 7
• On failure → Warn (not critical)

STEP 7: OUTPUT SUMMARY

OUTPUT FORMAT (exact):

{IF any fetched}
Fetching Claude Code documentation...

{FOR EACH doc in check_all_docs}
{STATUS_INDICATOR} {doc_name} ({status_message})
{END FOR}

{SUMMARY_LINE}

{ELSE}
All documentation is fresh (< 24h old)

Use --force to refresh anyway.
{END IF}

STATUS INDICATORS:

• ✓ = successfully fetched or cached fresh
• → = fetching now
• ✗ = fetch failed

SUMMARY LINE:

Fetched {N} docs, {M} cached, {K} failed
Documentation ready for claire agents

SPECIAL CASES:

• IF all cached, fresh: "All documentation is fresh (< 24h old)"
• IF all failed: "Failed to fetch any documentation. Using cached versions."
• IF TARGET_DOC specified: "Fetched {doc-name} documentation"

NEXT:

• TERMINATE (success)

ERROR PATTERNS

PATTERN: invalid-doc-name

DETECTION:

• TRIGGER: TARGET_DOC not in valid doc list
• CHECK: doc_name not in [skills, plugins, hooks-guide, sub-agents, slash-commands]

RESPONSE (exact):

Error: Invalid documentation name '{DOC_NAME}'

Valid documentation names:
  - skills
  - plugins
  - hooks-guide
  - sub-agents
  - slash-commands

Usage:
  /fetch:docs-claire                # Fetch all docs
  /fetch:docs-claire skills         # Fetch specific doc
  /fetch:docs-claire --force        # Force refresh all

TEMPLATE SUBSTITUTIONS:

• {DOC_NAME} = invalid doc name provided

CONTROL FLOW:

• ABORT: true
• CLEANUP: none
• RETRY: false

PATTERN: cache-dir-creation-failed

DETECTION:

• TRIGGER: mkdir fails for cache directory
• CAPTURE: mkdir error message

RESPONSE (exact):

Error: Failed to create cache directory

Directory: {CACHE_DIR}
Error: {MKDIR_ERROR}

Check:
- Write permissions on claire/ directory
- Disk space available
- Path is valid

TEMPLATE SUBSTITUTIONS:

• {CACHE_DIR} = claire/docs-cache
• {MKDIR_ERROR} = captured error

CONTROL FLOW:

• ABORT: true
• CLEANUP: none
• RETRY: false

PATTERN: index-read-failed

DETECTION:

• TRIGGER: docs-index.json exists but cannot be read
• CHECK: file exists but cat fails

RESPONSE (exact):

Warning: Could not read docs-index.json

Proceeding with default documentation URLs.

If this persists, check file permissions on:
  claire/docs-index.json

CONTROL FLOW:

• ABORT: false (warning, use defaults)
• CLEANUP: none
• FALLBACK: Use hardcoded default URLs

PATTERN: fetch-failed

DETECTION:

• TRIGGER: WebFetch fails for a specific doc
• CAPTURE: fetch error or network issue
• OCCURS: per-doc, not fatal to entire operation

RESPONSE:

✗ {DOC_NAME} (fetch failed: {ERROR_MESSAGE})

TEMPLATE SUBSTITUTIONS:

• {DOC_NAME} = doc that failed to fetch
• {ERROR_MESSAGE} = brief error description

CONTROL FLOW:

• ABORT: false (continue with other docs)
• CLEANUP: none
• FALLBACK: Use cached version if available

PATTERN: empty-response

DETECTION:

• TRIGGER: WebFetch succeeds but returns empty content
• CHECK: content length == 0 or content is whitespace only

RESPONSE:

✗ {DOC_NAME} (empty response from server)

CONTROL FLOW:

• ABORT: false (continue with other docs)
• CLEANUP: Don't overwrite existing cache
• FALLBACK: Keep existing cached version

TOOL PERMISSION MATRIX

Tool	Pattern	Permission	Pre-Check	Post-Check	On-Deny-Action
Read	claire/docs-index.json	ALLOW	N/A	N/A	N/A
Read	claire/docs-cache/*.md	ALLOW	N/A	N/A	N/A
Write	claire/docs-cache/*.md	ALLOW	dir_exists	file_created	N/A
Write	claire/docs-cache/.metadata.json	ALLOW	dir_exists	valid_json	N/A
WebFetch	code.claude.com/*	ALLOW	url_valid	content_received	N/A
Bash	mkdir claire/docs-cache	ALLOW	N/A	dir_created	N/A
Bash	test:*	ALLOW	N/A	N/A	N/A
Bash	cat:*	ALLOW	N/A	N/A	N/A
Bash	date:*	ALLOW	N/A	N/A	N/A
Bash	jq:*	ALLOW	N/A	N/A	N/A
Bash	mv:*	ALLOW	N/A	N/A	N/A
Bash	rm claire/docs-cache/*	DENY	N/A	N/A	ABORT "Use --force to refresh"
Bash	sudo:*	DENY	N/A	N/A	ABORT "Elevated privileges"
Write	*/.env	DENY	N/A	N/A	ABORT "Secrets file"

SECURITY CONSTRAINTS:

• Can ONLY fetch from code.claude.com domain
• Can ONLY write to claire/docs-cache/ directory
• CANNOT delete cache files (only overwrite)
• CANNOT execute arbitrary web requests
• All fetched content must be documentation

TEST CASES

TC001: Fetch all docs with fresh cache

PRECONDITIONS:

• Cache directory exists: claire/docs-cache/
• All docs cached and fresh (< 24h old)
• No --force flag

INPUT:

/fetch:docs-claire

EXPECTED EXECUTION FLOW:

1. STEP 1 → FORCE_REFRESH=false, TARGET_DOC="all"
2. STEP 2 → Cache dir exists
3. STEP 3 → Read index successfully
4. STEP 4 → All docs have status "cached, fresh", docs_to_fetch = []
5. STEP 7 → Output "All fresh" message
6. TERMINATE

EXPECTED OUTPUT:

All documentation is fresh (< 24h old)

Use --force to refresh anyway.

VALIDATION:

# Verify no files were modified
find claire/docs-cache -name "*.md" -mmin -1 | wc -l  # Should be 0

TC002: Fetch all with expired cache

PRECONDITIONS:

• Cache directory exists
• Some docs cached but > 24h old
• Some docs not cached

INPUT:

/fetch:docs-claire

EXPECTED EXECUTION FLOW: 1-4. Standard flow, identify expired/missing docs 5. STEP 5 → Fetch expired and missing docs via WebFetch 6. STEP 6 → Update metadata with new timestamps 7. STEP 7 → Output summary with fetch results

EXPECTED OUTPUT:

Fetching Claude Code documentation...

✓ skills (cached, fresh)
→ Fetching plugins (cache expired)
→ Fetching sub-agents (not cached)
✓ hooks-guide (cached, fresh)
✓ slash-commands (cached, fresh)

Fetched 2 docs, 3 cached
Documentation ready for claire agents

VALIDATION:

# Verify docs were updated
test -f claire/docs-cache/plugins.md && echo "PASS" || echo "FAIL"
test -f claire/docs-cache/sub-agents.md && echo "PASS" || echo "FAIL"
find claire/docs-cache -name "plugins.md" -mmin -1 | grep -q plugins && echo "PASS" || echo "FAIL"

TC003: Force refresh all

PRECONDITIONS:

• Cache exists with fresh docs

INPUT:

/fetch:docs-claire --force

EXPECTED EXECUTION FLOW:

1. STEP 1 → FORCE_REFRESH=true, TARGET_DOC="all" 2-4. All docs added to docs_to_fetch regardless of age
2. STEP 5 → Fetch all docs 6-7. Update and output

EXPECTED OUTPUT:

Fetching Claude Code documentation...

→ Fetching skills (force refresh)
→ Fetching plugins (force refresh)
→ Fetching hooks-guide (force refresh)
→ Fetching sub-agents (force refresh)
→ Fetching slash-commands (force refresh)

Fetched 5 docs, 0 cached
Documentation ready for claire agents

VALIDATION:

# Verify all files were updated recently
find claire/docs-cache -name "*.md" -mmin -1 | wc -l  # Should be 5

TC004: Fetch specific doc

PRECONDITIONS:

• Cache directory exists

INPUT:

/fetch:docs-claire skills

EXPECTED EXECUTION FLOW:

1. STEP 1 → TARGET_DOC="skills" 2-4. Only check skills doc
2. STEP 5 → Fetch only skills 6-7. Update and output

EXPECTED OUTPUT:

Fetching Claude Code documentation...

→ Fetching skills (cache expired)

Fetched skills documentation
Documentation ready for claire agents

VALIDATION:

test -f claire/docs-cache/skills.md && echo "PASS" || echo "FAIL"

TC005: Network failure (partial)

PRECONDITIONS:

• Need to fetch 3 docs
• Network fails for 1 doc

INPUT:

/fetch:docs-claire --force

EXPECTED EXECUTION FLOW: 1-4. Standard flow 5. STEP 5 → Fetch each doc, one fails with network error 6. ERROR PATTERN "fetch-failed" for failed doc (non-fatal) 7. Continue with remaining docs 8. STEP 7 → Output summary showing failure

EXPECTED OUTPUT:

Fetching Claude Code documentation...

✓ skills (force refresh)
✗ plugins (fetch failed: network timeout)
✓ hooks-guide (force refresh)
✓ sub-agents (force refresh)
✓ slash-commands (force refresh)

Fetched 4 docs, 0 cached, 1 failed
Some documentation may be outdated. Using cached versions where available.

TC006: Cache directory doesn't exist

PRECONDITIONS:

• claire/docs-cache/ does not exist

INPUT:

/fetch:docs-claire

EXPECTED EXECUTION FLOW:

1. STEP 1 → Parse args
2. STEP 2 → DIR_EXISTS != 0, create directory 3-7. Standard flow with newly created directory

EXPECTED OUTPUT:

Created cache directory: claire/docs-cache

Fetching Claude Code documentation...

→ Fetching skills (not cached)
→ Fetching plugins (not cached)
...

Fetched 5 docs, 0 cached
Documentation ready for claire agents

VALIDATION:

test -d claire/docs-cache && echo "PASS" || echo "FAIL"
test -f claire/docs-cache/.metadata.json && echo "PASS" || echo "FAIL"

CACHE STRUCTURE

claire/
├── docs-index.json          # URL mappings and config
└── docs-cache/
    ├── skills.md
    ├── plugins.md
    ├── hooks-guide.md
    ├── sub-agents.md
    ├── slash-commands.md
    └── .metadata.json       # Fetch timestamps and metadata

.metadata.json FORMAT

{
  "skills": {
    "url": "https://code.claude.com/docs/en/skills",
    "lastFetched": "2025-11-24T12:00:00Z",
    "size": 12345,
    "status": "success"
  },
  "sub-agents": {
    "url": "https://code.claude.com/docs/en/sub-agents",
    "lastFetched": "2025-11-24T12:00:05Z",
    "size": 23456,
    "status": "success"
  }
}

INTEGRATION NOTES

With Claire Agents

Claire agents (author-agent, author-command) should:

1. Check if docs-cache exists and is fresh
2. If missing or stale (> 24h), recommend running /fetch:docs-claire
3. Read cached docs from claire/docs-cache/ for specifications
4. Reference latest patterns and examples from cached docs

Cache Lifetime

• Default: 24 hours (86400 seconds)
• Rationale: Documentation doesn't change frequently, reduce network load
• Override: Use --force to refresh regardless of age

RELATED COMMANDS

• None (standalone command for documentation management)

DELEGATION

Not applicable - this is a simple fetch-and-cache operation with no complex decision-making requiring agent delegation.

VERSION

• Version: 2.0.0
• Created: 2025-11-23
• Updated: 2025-11-24 (AI optimization, renamed to /fetch:docs-claire)
• Purpose: Fetch and cache Claude Code documentation for claire agents
• Changelog:
  • 2.0.0 (2025-11-24): AI-optimized with execution protocol, error patterns
  • 1.0.0 (2025-11-23): Initial creation