4638864a74
The pre-existed branch of _restore_snapshot unlinked only SKILL.md, so a batch [create gamma (adopting an empty leftover), write_file gamma references/a.md, failing op] left references/a.md behind while reporting "all touched skills rolled back" — and the next create was refused as occupied, wedging the user until they hand-deleted the dir. The batch already records each applied op's name/file_path; hand those to the rollback so it unlinks exactly what the batch wrote and rmdir()s the emptied dirs up to the skill dir. rmdir() fails on anything else, so a file that landed out-of-band still survives. One ownership rule for an adopted empty dir on both paths: the single-op create also always rmdir()s after a blocked scan instead of tracking a created_dir flag (rmdir removes only an empty dir, so the flag added nothing but a second rule). create_targets loses its never-used default; _create_skill reuses mkdir_under_hermes_home for the parent instead of inlining its assert + mkdir.
967 lines
48 KiB
Python
967 lines
48 KiB
Python
#!/usr/bin/env python3
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"""Skill Manager Tool — agent-managed skill creation & editing.
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Skills are the agent's procedural memory (narrow "how to do X"; MEMORY.md/USER.md are
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broad, declarative). New skills land in ~/.hermes/skills/ (or ``skills.create_dir``);
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existing skills (bundled, hub, user) are modified in place. Layout:
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``<skills>/[category/]<skill>/SKILL.md`` + optional ``references/ templates/ scripts/ assets/``.
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"""
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import contextvars as _ctxvars
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import hashlib
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import json
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from contextlib import ExitStack, suppress
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import logging
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import re
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import shutil
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import threading
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from pathlib import Path
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from typing import Any, Dict, List, Optional, Tuple
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import yaml
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from hermes_constants import get_hermes_home, display_hermes_home
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from utils import atomic_write_text, is_truthy_value
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from hermes_cli.config import cfg_get
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from agent.skill_utils import (
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extract_skill_description,
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is_skill_description_truncated_for_prompt,
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parse_frontmatter as _parse_frontmatter,
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SKILL_PROMPT_DESC_LIMIT)
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from tools.skill_manager_guards import (
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_background_review_preflight, _background_review_read_before_write_guard, _background_review_write_guard,
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_containing_skills_root, _curator_consolidation_delete_guard, _is_path_redirect, _maybe_auto_propose_org_edit,
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_org_mirror_write_guard, _pinned_guard, _validate_delete_target, _is_background_review, _refusal as _err)
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from tools.skill_manager_batch import (
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_PATCH_EITHER_OR, _PATCH_NEEDS_NEW_STRING, _PATCH_NEEDS_OLD_STRING, _op_shape_error, _skill_manage_batch)
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from tools.skills_guard import scan_skill, should_allow_install, format_scan_report
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logger = logging.getLogger(__name__)
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def _guard_agent_created_enabled() -> bool:
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"""skills.guard_agent_created (default False): opt-in — terminal() runs the same code ungated."""
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try:
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from hermes_cli.config import load_config
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return is_truthy_value(cfg_get(load_config(), "skills", "guard_agent_created"), default=False)
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except Exception:
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return False
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def _security_scan_skill(skill_dir: Path) -> Optional[str]:
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"""Post-write scan (opt-in); error string if blocked, else None. An "ask" verdict
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(dangerous findings) is surfaced as an error so the agent can retry without them."""
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if not _guard_agent_created_enabled():
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return None
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try:
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result = scan_skill(skill_dir, source="agent-created")
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allowed, reason = should_allow_install(result)
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if allowed is None:
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logger.warning("Agent-created skill blocked (dangerous findings): %s", reason)
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if allowed is not True:
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return f"Security scan blocked this skill ({reason}):\n{format_scan_report(result)}"
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except Exception as e:
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logger.warning("Security scan failed for %s: %s", skill_dir, e, exc_info=True)
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return None
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# All skills live in ~/.hermes/skills/ (single source of truth)
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HERMES_HOME = get_hermes_home()
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SKILLS_DIR = HERMES_HOME / "skills"
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_SKILLS_DIR_AT_IMPORT = SKILLS_DIR
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def _skills_dir() -> Path:
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"""Active profile's skills dir at call time (multi-profile runtimes rebind per session).
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An explicitly patched module-level ``SKILLS_DIR`` (tests) wins over the live HERMES_HOME.
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Long-lived multi-profile runtimes (Dashboard/TUI/Desktop backend, cron, kanban workers) import this
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module once under the launch HERMES_HOME and later bind a different profile per session (#40677).
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"""
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configured = Path(SKILLS_DIR)
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return configured if configured != _SKILLS_DIR_AT_IMPORT else get_hermes_home() / "skills"
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def _skill_lock_path(name: str) -> Path:
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"""Per-skill lock file under ``<skills>/.locks/`` (same idiom as the usage ledger's
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``.usage.json.lock``), never inside the skill dir so delete/recreate cannot unlink it under a
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waiting writer. Keyed by a digest of the basename so ``foo`` and ``category/foo`` share one
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lock and no name can hit a filesystem limit (callers validate the basename first)."""
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digest = hashlib.sha256(Path(name).name.encode("utf-8", "surrogatepass")).hexdigest()
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return _skills_dir() / ".locks" / f"{digest}.lock"
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def _skill_mutation_lock(name: str):
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"""Exclusive lock held across one skill's whole read-modify-write; thread-re-entrant."""
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from tools.skill_usage import skill_file_lock
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return skill_file_lock(_skill_lock_path(name))
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def _skill_mutation_locks(names):
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"""Every lock of an atomic batch, acquired in one stable path order (deadlock-free across batches)."""
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from tools.skill_usage import skill_file_lock
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stack = ExitStack()
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for lock_path in sorted({_skill_lock_path(n) for n in names}):
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stack.enter_context(skill_file_lock(lock_path))
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return stack
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MAX_NAME_LENGTH = 64
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MAX_DESCRIPTION_LENGTH = 1024
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MAX_SKILL_CONTENT_CHARS = 100_000 # ~36k tokens at 2.75 chars/token
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MAX_SKILL_FILE_BYTES = 1_048_576 # 1 MiB per supporting file
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VALID_NAME_RE = re.compile(r'^[a-z0-9][a-z0-9._-]*$') # filesystem-safe, URL-friendly
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ALLOWED_SUBDIRS = {"references", "templates", "scripts", "assets"} # for write_file/remove_file
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_FRONTMATTER_END_RE = re.compile(r'\n---\s*\n')
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_NAME_RULE = "Use lowercase letters, numbers, hyphens, dots, and underscores."
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def _display_create_dir() -> str:
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"""Skill-creation dir for schema/instruction text; follows ``skills.create_dir``."""
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try:
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from agent.skill_utils import display_skill_create_dir
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return display_skill_create_dir()
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except Exception:
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return f"{display_hermes_home()}/skills/"
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# --- Validation helpers -------------------------------------------------------
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def _check_identifier(value: str, label: str, invalid: str) -> Optional[str]:
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if len(value) > MAX_NAME_LENGTH:
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return f"{label} exceeds {MAX_NAME_LENGTH} characters."
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return None if VALID_NAME_RE.match(value) else invalid
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def _validate_name(name: str) -> Optional[str]:
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if not name:
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return "Skill name is required."
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return _check_identifier(
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name, "Skill name", f"Invalid skill name '{name}'. {_NAME_RULE} Must start with a letter or digit.")
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def _validate_category(category: Optional[str]) -> Optional[str]:
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if category is None or (isinstance(category, str) and not category.strip()):
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return None
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if not isinstance(category, str):
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return "Category must be a string."
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category = category.strip()
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invalid = (f"Invalid category '{category}'. {_NAME_RULE} "
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"Categories must be a single directory name.")
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if "/" in category or "\\" in category:
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return invalid
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return _check_identifier(category, "Category", invalid)
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def _validate_frontmatter(content: str, *, new_skill: bool = False) -> Optional[str]:
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"""Validate frontmatter (name + description) and a non-empty body. ``new_skill`` (create
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only) also enforces SKILL_PROMPT_DESC_LIMIT so new skills never lose routing signal to
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index truncation; edit/patch skip it so existing over-limit skills stay maintainable."""
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if not content.strip():
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return "Content cannot be empty."
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content = content.lstrip("\ufeff") # tolerate a Windows UTF-8 BOM
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if not content.startswith("---"):
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return "SKILL.md must start with YAML frontmatter (---). See existing skills for format."
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end_match = _FRONTMATTER_END_RE.search(content[3:])
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if not end_match:
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return "SKILL.md frontmatter is not closed. Ensure you have a closing '---' line."
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try:
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parsed = yaml.safe_load(content[3:end_match.start() + 3])
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except yaml.YAMLError as e:
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return f"YAML frontmatter parse error: {e}"
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if not isinstance(parsed, dict):
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return "Frontmatter must be a YAML mapping (key: value pairs)."
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for field in ("name", "description"):
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if field not in parsed:
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return f"Frontmatter must include '{field}' field."
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desc = str(parsed["description"])
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if len(desc) > MAX_DESCRIPTION_LENGTH:
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return f"Description exceeds {MAX_DESCRIPTION_LENGTH} characters."
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if new_skill and len(desc.strip().strip("'\"")) > SKILL_PROMPT_DESC_LIMIT:
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return (
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f"Description is {len(desc.strip())} chars — new skills must fit the "
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f"{SKILL_PROMPT_DESC_LIMIT}-char system-prompt budget (one sentence, trigger first, "
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f"ends with a period). The skill index truncates longer descriptions to "
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f"{SKILL_PROMPT_DESC_LIMIT - 3} chars + '...', destroying the routing signal. "
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f"Move detail into the skill body.")
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if not content[end_match.end() + 3:].strip():
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return "SKILL.md must have content after the frontmatter (instructions, procedures, etc.)."
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return None
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def _validate_content_size(content: str, label: str = "SKILL.md") -> Optional[str]:
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if len(content) > MAX_SKILL_CONTENT_CHARS:
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return (
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f"{label} content is {len(content):,} characters (limit: {MAX_SKILL_CONTENT_CHARS:,}). "
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f"Consider splitting into a smaller SKILL.md with supporting files in references/ "
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f"or templates/.")
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return None
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def _description_preview(content: str) -> str:
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"""First 120 chars of the frontmatter description; '' on any failure."""
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with suppress(Exception):
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fm_end = _FRONTMATTER_END_RE.search(content[3:])
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if fm_end:
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return str(yaml.safe_load(content[3:fm_end.start() + 3]).get("description", ""))[:120]
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return ""
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def _resolve_skill_dir(name: str, category: str = None) -> Path:
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"""New-skill dir; honors ``skills.create_dir`` (e.g. a shared fleet dir)."""
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base = _skills_dir()
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try:
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from agent.skill_utils import get_skill_create_dir
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base = get_skill_create_dir() or base
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except Exception:
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logger.debug("skills.create_dir lookup failed", exc_info=True)
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return base / (category or "") / name
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def _iter_skill_dirs(root: Path):
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from agent.skill_utils import is_excluded_skill_path
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for skill_md in root.rglob("SKILL.md"):
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if not is_excluded_skill_path(skill_md):
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yield skill_md.parent
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def _find_skill(name: str) -> Optional[Dict[str, Any]]:
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"""Find a skill (local skills dir, then skills.external_dirs) -> ``{"path": Path}`` | None.
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Accepts the bare dir name (``axolotl``; matches category-nested skills too) and the
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categorized relative path (``mlops/axolotl``) — the two forms skill_view resolves. The
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categorized form matches RELATIVE to the local root only (relative_to raises for external dirs)."""
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from agent.skill_utils import get_all_skills_dirs
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local_root = None
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if "/" in name or "\\" in name:
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try:
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local_root = _skills_dir().resolve()
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except OSError:
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logger.debug(
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"skills dir resolve failed; categorized lookups fall back to the unresolved path",
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exc_info=True)
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local_root = _skills_dir()
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for skills_dir in get_all_skills_dirs():
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if not skills_dir.exists():
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continue
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for skill_dir in _iter_skill_dirs(skills_dir):
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if skill_dir.name == name:
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return {"path": skill_dir}
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if local_root is not None:
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resolved = skill_dir.resolve()
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if (resolved.is_relative_to(local_root)
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and resolved.relative_to(local_root).as_posix() == name): # POSIX form
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return {"path": skill_dir}
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return None
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def _find_skill_in_other_profiles(name: str) -> List[Tuple[str, Path]]:
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"""``(profile, skill_dir)`` pairs for OTHER profiles holding ``name`` (so the not-found
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error can explain a wrong-profile mistake). Fail-quiet."""
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matches: List[Tuple[str, Path]] = []
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try:
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from hermes_constants import get_default_hermes_root
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root = get_default_hermes_root()
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except Exception:
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return matches
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_active = _skills_dir()
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active_dir = _active.resolve() if _active.exists() else _active
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# Every profile's skills dir EXCEPT the active one (already searched). A candidate whose
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# path cannot be resolved is skipped (not a fatal error); is_dir() checks stay unguarded.
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candidates: List[Tuple[str, Path]] = []
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with suppress(OSError, RuntimeError):
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if (root / "skills").resolve() != active_dir:
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candidates.append(("default", root / "skills"))
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if (root / "profiles").is_dir():
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with suppress(OSError):
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for entry in (root / "profiles").iterdir():
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if not entry.is_dir():
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continue
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try:
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if (entry / "skills").resolve() == active_dir:
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continue
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except (OSError, RuntimeError):
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continue
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candidates.append((entry.name, entry / "skills"))
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for profile_name, skills_dir in candidates:
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if not skills_dir.is_dir():
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continue
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with suppress(OSError):
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hit = next((d for d in _iter_skill_dirs(skills_dir) if d.name == name), None)
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if hit is not None:
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matches.append((profile_name, hit)) # one match per profile is enough
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return matches
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def _skill_not_found_error(name: str, suffix: str = "") -> str:
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"""Not-found error naming other profiles that hold the skill, plus ``suffix``."""
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from agent.file_safety import _resolve_active_profile_name
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base = f"Skill '{name}' not found in active profile '{_resolve_active_profile_name()}'."
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others = _find_skill_in_other_profiles(name)
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if len(others) == 1:
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other_profile, other_path = others[0]
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base += (
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f" A skill by that name exists in profile '{other_profile}' ({other_path}). To edit "
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f"it, switch profiles (`hermes -p {other_profile}`) or edit the file directly "
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f"(file tools / terminal).")
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elif others:
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names = ", ".join(f"'{p}'" for p, _ in others)
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base += (
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f" Skills by that name exist in other profiles: {names}. Switch profiles (`hermes -p "
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f"<name>`) to edit there, or edit the files directly (file tools / terminal).")
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else:
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base += " Use skills_list() to see available skills."
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return base + suffix
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def _validate_file_path(file_path: str) -> Optional[str]:
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"""Validate a write_file/remove_file path: under an allowed subdir, no escape."""
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from tools.path_security import has_traversal_component
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if not file_path:
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return "file_path is required."
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parts = Path(file_path).parts
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# Traversal first, so the SKILL.md exception is unreachable by a traversal-laden path.
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if has_traversal_component(file_path):
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return "Path traversal ('..') is not allowed."
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# SKILL.md lives at the skill root; accept 'SKILL.md' and '<skill>/SKILL.md'.
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if parts and parts[-1] == "SKILL.md" and len(parts) in (1, 2):
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return None
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if not parts or parts[0] not in ALLOWED_SUBDIRS:
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allowed = ", ".join(sorted(ALLOWED_SUBDIRS))
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return f"File must be under one of: {allowed}. Got: '{file_path}'"
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if len(parts) < 2:
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return f"Provide a file path, not just a directory. Example: '{parts[0]}/myfile.md'"
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return None
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def _resolve_supporting_file(skill_dir: Path, file_path: str):
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"""Validate ``file_path`` and resolve it inside ``skill_dir``
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-> ``(target, None)`` | ``(None, error_dict)``."""
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from tools.path_security import validate_within_dir
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target = skill_dir / (file_path or "")
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err = _validate_file_path(file_path) or validate_within_dir(target, skill_dir)
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return (None, _err(err)) if err else (target, None)
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def _locate_for_write(name: str, action: str, not_found_suffix: str = "", *,
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org_guard: bool = True):
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"""Find the skill; run the org-mirror (unless ``org_guard=False``) and background-review
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write guards -> ``(skill_dir, None)`` | ``(None, error_dict)``."""
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existing = _find_skill(name)
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if not existing:
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return None, _err(_skill_not_found_error(name, not_found_suffix))
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skill_dir = existing["path"]
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guard = ((org_guard and _org_mirror_write_guard(name, skill_dir, action))
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or _background_review_write_guard(name, skill_dir, action))
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return (None, guard) if guard else (skill_dir, None)
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def _guarded_write(name: str, skill_dir: Path, target: Path, action: str, label: str,
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content: str) -> Optional[Dict[str, Any]]:
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"""Read-before-write guard (existing targets only), atomic write, then the security scan;
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a blocked scan restores the original (or unlinks a new file). Error dict or None."""
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original = None
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if target.exists():
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if read_guard := _background_review_read_before_write_guard(name, target, action, label):
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return read_guard
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original = target.read_text(encoding="utf-8")
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from hermes_constants import mkdir_under_hermes_home
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mkdir_under_hermes_home(target.parent)
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atomic_write_text(target, content, preserve_mode=True, create_mode=0o644)
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scan_error = _security_scan_skill(skill_dir)
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if not scan_error:
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return None
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if original is not None:
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atomic_write_text(target, original, preserve_mode=True)
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else:
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target.unlink(missing_ok=True)
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return _err(scan_error)
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def _attach_org_note(result: Dict[str, Any], name: str, skill_dir: Path) -> Dict[str, Any]:
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if org_note := _maybe_auto_propose_org_edit(name, skill_dir):
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result["org_sharing"] = org_note
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result["message"] = f"{result['message']} {org_note}"
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return result
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def _add_description_prompt_preview(result: Dict[str, Any], content: str) -> Dict[str, Any]:
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fm, _ = _parse_frontmatter(content)
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if is_skill_description_truncated_for_prompt(fm):
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result["system_prompt_preview"] = (
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f"System prompt will show: \"{extract_skill_description(fm)}\" — keep the trigger "
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f"self-contained in the first {SKILL_PROMPT_DESC_LIMIT - 3} chars.")
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return result
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def _attach_lint_findings(result: Dict[str, Any], skill_md: Path, before: Optional[str] = None) -> None:
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"""Attach ADVISORY authoring findings (hard rejects already ran in _validate_frontmatter).
|
|
With ``before`` (the pre-write content) only rules the write INTRODUCED are attached, so a
|
|
patch reports the line it crossed rather than re-listing the skill's standing findings."""
|
|
try:
|
|
from tools.skill_linter import lint_content, lint_skill # local import: optional path
|
|
findings = lint_skill(skill_md)
|
|
if before is not None:
|
|
standing = {f.rule for f in lint_content(before, skill_dir=skill_md.parent)}
|
|
findings = [f for f in findings if f.rule not in standing]
|
|
except Exception:
|
|
findings = None
|
|
if not findings:
|
|
return
|
|
result["lint_warnings"] = [
|
|
{"severity": f.severity, "rule": f.rule, "message": f.message} for f in findings]
|
|
result["lint_hint"] = (
|
|
"The write succeeded. These are advisory authoring-convention findings (not blockers) "
|
|
"— fix them with skill_manage(action='patch') to match Hermes skill standards.")
|
|
|
|
|
|
def _clip(text: str, n: int, ellipsis: str) -> str:
|
|
return text[:n] + (ellipsis if len(text) > n else "")
|
|
|
|
|
|
# --- Core actions -------------------------------------------------------------
|
|
|
|
def _create_skill(name: str, content: str, category: str = None) -> Dict[str, Any]:
|
|
if err := (_validate_name(name) or _validate_category(category)
|
|
or _validate_frontmatter(content, new_skill=True) or _validate_content_size(content)):
|
|
return _err(err)
|
|
if existing := _find_skill(name):
|
|
return _err(f"A skill named '{name}' already exists at {existing['path']}.")
|
|
skill_dir = _resolve_skill_dir(name, category)
|
|
from hermes_constants import mkdir_under_hermes_home
|
|
mkdir_under_hermes_home(skill_dir.parent)
|
|
try:
|
|
skill_dir.mkdir(exist_ok=False)
|
|
except FileExistsError:
|
|
# mkdir raised EEXIST for a file, symlink (live or dangling) or dir alike; only an EMPTY
|
|
# real directory (leftover of an earlier create whose SKILL.md write failed) may be used.
|
|
# Anything else — or anything unstat-able/unlistable — is someone else's: never adopt.
|
|
try:
|
|
usable = (not _is_path_redirect(skill_dir) and skill_dir.is_dir()
|
|
and not any(skill_dir.iterdir()))
|
|
except OSError: # permissions / ACL
|
|
usable = False
|
|
if not usable:
|
|
return _err(f"Cannot create skill '{name}': {skill_dir} already exists (not an empty "
|
|
"directory, or unreadable). Choose another name, or move/remove that path and retry.")
|
|
skill_md = skill_dir / "SKILL.md"
|
|
if guard := _guarded_write(name, skill_dir, skill_md, "create", "SKILL.md", content):
|
|
with suppress(OSError): # rmdir, not rmtree: only an empty dir goes, anything foreign stays
|
|
skill_dir.rmdir()
|
|
return guard
|
|
root = _skills_dir() # display relative under the profile dir; absolute under skills.create_dir
|
|
display = skill_dir.relative_to(root) if skill_dir.is_relative_to(root) else skill_dir
|
|
result = {
|
|
"success": True, "message": f"Skill '{name}' created.", "path": str(display),
|
|
"skill_md": str(skill_md), "_change": {"description": _description_preview(content)},
|
|
**({"category": category} if category else {}),
|
|
"hint": "To add reference files, templates, or scripts, use "
|
|
f"skill_manage(action='write_file', name='{name}', file_path='references/example.md', "
|
|
"file_content='...')"}
|
|
_attach_lint_findings(_add_description_prompt_preview(result, content), skill_md)
|
|
return result
|
|
|
|
|
|
def _edit_skill(name: str, content: str) -> Dict[str, Any]:
|
|
"""Replace the SKILL.md of any existing skill (full rewrite)."""
|
|
if err := _validate_frontmatter(content) or _validate_content_size(content):
|
|
return _err(err)
|
|
skill_dir, guard = _locate_for_write(name, "edit")
|
|
# SKILL.md always exists here (_find_skill requires it), so a blocked scan restores it.
|
|
if guard := guard or _guarded_write(name, skill_dir, skill_dir / "SKILL.md", "edit", "SKILL.md", content):
|
|
return guard
|
|
result = {
|
|
"success": True, "message": f"Skill '{name}' updated (full rewrite).",
|
|
"path": str(skill_dir), "_change": {"description": _description_preview(content)}}
|
|
return _add_description_prompt_preview(_attach_org_note(result, name, skill_dir), content)
|
|
|
|
|
|
def _patch_skill(name: str, old_string: str, new_string: str, file_path: str = None,
|
|
replace_all: bool = False) -> Dict[str, Any]:
|
|
"""Targeted find-and-replace in SKILL.md (default) or a supporting file; unique match unless replace_all."""
|
|
if not old_string:
|
|
return _err(_PATCH_NEEDS_OLD_STRING)
|
|
if new_string is None:
|
|
return _err(_PATCH_NEEDS_NEW_STRING)
|
|
# No old_string == new_string guard here: fuzzy_find_and_replace rejects that with a
|
|
# richer error (file_preview) this layer cannot produce.
|
|
skill_dir, guard = _locate_for_write(name, "patch")
|
|
if guard:
|
|
return guard
|
|
target_label = file_path or "SKILL.md"
|
|
if file_path:
|
|
target, err = _resolve_supporting_file(skill_dir, file_path)
|
|
if err:
|
|
return err
|
|
else:
|
|
target = skill_dir / "SKILL.md"
|
|
if not target.exists():
|
|
return _err(f"File not found: {target.relative_to(skill_dir)}")
|
|
if read_guard := _background_review_read_before_write_guard(name, target, "patch", target_label):
|
|
return read_guard
|
|
content = target.read_text(encoding="utf-8")
|
|
# Same fuzzy engine as the file patch tool (whitespace/indent/escape normalization,
|
|
# block anchors) so minor formatting mismatches don't fail.
|
|
from tools.fuzzy_match import fuzzy_find_and_replace
|
|
new_content, match_count, _strategy, match_error = fuzzy_find_and_replace(
|
|
content, old_string, new_string, replace_all)
|
|
if match_error:
|
|
with suppress(Exception):
|
|
from tools.fuzzy_match import format_no_match_hint
|
|
match_error += format_no_match_hint(match_error, match_count, old_string, content)
|
|
return _err(match_error) | {"file_preview": _clip(content, 500, "...")}
|
|
if err := _validate_content_size(new_content, label=target_label):
|
|
return _err(err)
|
|
if not file_path and (err := _validate_frontmatter(new_content)):
|
|
return _err(f"Patch would break SKILL.md structure: {err}")
|
|
if guard := _guarded_write(name, skill_dir, target, "patch", target_label, new_content):
|
|
return guard
|
|
result = {
|
|
"success": True,
|
|
"message": f"Patched {target_label} in skill '{name}' ({match_count} replacement{'s' if match_count > 1 else ''}).",
|
|
"_change": {"old": _clip(old_string, 200, "…"), "new": _clip(new_string, 200, "…")}}
|
|
result = _attach_org_note(result, name, skill_dir)
|
|
# SKILL.md grows by patches, not by creates: surface findings on the patch that crosses a line
|
|
# (oversized-body, incident-log-shape) — a clean patch attaches nothing and stays quiet.
|
|
if not file_path:
|
|
_attach_lint_findings(result, target, before=content)
|
|
return result
|
|
|
|
|
|
def _delete_skill(name: str, absorbed_into: Optional[str] = None) -> Dict[str, Any]:
|
|
"""Delete a skill. ``absorbed_into``: None = undeclared (legacy, accepted); "" = explicit prune;
|
|
"<skill>" = absorbed into that umbrella, which must exist (so the model can't claim one)."""
|
|
skill_dir, guard = _locate_for_write(name, "delete")
|
|
if guard := guard or _curator_consolidation_delete_guard(name, absorbed_into):
|
|
return guard
|
|
if pinned_err := _pinned_guard(name):
|
|
return _err(pinned_err)
|
|
absorbed_target = absorbed_into.strip() if isinstance(absorbed_into, str) else ""
|
|
if absorbed_target:
|
|
if absorbed_target == name:
|
|
return _err(f"absorbed_into='{absorbed_target}' cannot equal the skill being deleted.")
|
|
if not _find_skill(absorbed_target):
|
|
return _err(f"absorbed_into='{absorbed_target}' does not exist. "
|
|
f"Create or patch the umbrella skill first, then retry the delete.")
|
|
skills_root = _containing_skills_root(skill_dir)
|
|
if unsafe := _validate_delete_target(skill_dir): # defense-in-depth before rmtree
|
|
return _err(unsafe)
|
|
# Curator consolidations must be RECOVERABLE (`hermes curator restore`): archive instead
|
|
# of rmtree. Foreground deletes keep hard-delete semantics.
|
|
absorbed_note = f" Content absorbed into '{absorbed_target}'." if absorbed_target else ""
|
|
if _is_background_review():
|
|
try:
|
|
from tools.skill_usage import archive_skill
|
|
ok, archive_msg = archive_skill(name)
|
|
except Exception as e:
|
|
return _err(f"failed to archive '{name}': {e}")
|
|
if not ok:
|
|
return _err(archive_msg)
|
|
return {"success": True,
|
|
"message": f"Skill '{name}' archived ({archive_msg}).{absorbed_note}",
|
|
"_archived": True}
|
|
shutil.rmtree(skill_dir)
|
|
_rmdir_if_empty(skill_dir.parent, skills_root) # empty category dir, never the root
|
|
return {"success": True, "message": f"Skill '{name}' deleted.{absorbed_note}"}
|
|
|
|
|
|
def _rmdir_if_empty(parent: Path, stop: Path) -> None:
|
|
if parent != stop and parent.exists() and not any(parent.iterdir()):
|
|
parent.rmdir()
|
|
|
|
|
|
def _write_file(name: str, file_path: str, file_content: str) -> Dict[str, Any]:
|
|
"""Add or overwrite a supporting file within any skill directory."""
|
|
if err := _validate_file_path(file_path):
|
|
return _err(err)
|
|
if not file_content and file_content != "":
|
|
return _err("file_content is required.")
|
|
if (content_bytes := len(file_content.encode("utf-8"))) > MAX_SKILL_FILE_BYTES:
|
|
return _err(f"File content is {content_bytes:,} bytes (limit: {MAX_SKILL_FILE_BYTES:,} "
|
|
f"bytes / 1 MiB). Consider splitting into smaller files.")
|
|
if err := _validate_content_size(file_content, label=file_path):
|
|
return _err(err)
|
|
skill_dir, guard = _locate_for_write(name, "write_file", " Create it first with action='create'.")
|
|
if guard:
|
|
return guard
|
|
target, err = _resolve_supporting_file(skill_dir, file_path)
|
|
if guard := err or _guarded_write(name, skill_dir, target, "write_file", file_path, file_content):
|
|
return guard
|
|
result = _attach_org_note({"success": True, "message": f"File '{file_path}' written to skill '{name}'.",
|
|
"path": str(target)}, name, skill_dir)
|
|
# references/ is where per-session hoarding shows up; surface the sprawl finding on the write
|
|
# that crosses the line so the review fork sees it in the same turn.
|
|
if file_path.startswith("references/") and (skill_dir / "SKILL.md").exists():
|
|
_attach_lint_findings(result, skill_dir / "SKILL.md")
|
|
return result
|
|
|
|
|
|
def _remove_file(name: str, file_path: str) -> Dict[str, Any]:
|
|
"""Remove a supporting file from any skill directory."""
|
|
if err := _validate_file_path(file_path):
|
|
return _err(err)
|
|
skill_dir, guard = _locate_for_write(name, "remove_file", org_guard=False)
|
|
if guard:
|
|
return guard
|
|
target, err = _resolve_supporting_file(skill_dir, file_path)
|
|
if err:
|
|
return err
|
|
if not target.exists(): # list what IS there so the model can pick the right path
|
|
available = [str(f.relative_to(skill_dir)) for subdir in ALLOWED_SUBDIRS
|
|
if (skill_dir / subdir).exists() for f in (skill_dir / subdir).rglob("*") if f.is_file()]
|
|
return _err(f"File '{file_path}' not found in skill '{name}'.", available_files=available or None)
|
|
if read_guard := _background_review_read_before_write_guard(name, target, "remove_file", file_path):
|
|
return read_guard
|
|
target.unlink()
|
|
_rmdir_if_empty(target.parent, skill_dir)
|
|
return {"success": True, "message": f"File '{file_path}' removed from skill '{name}'."}
|
|
|
|
|
|
# --- Main entry point ---------------------------------------------------------
|
|
|
|
# Set while replaying an approved staged skill write so skill_manage() does not re-gate it.
|
|
_skill_gate_bypass: "_ctxvars.ContextVar[bool]" = _ctxvars.ContextVar(
|
|
"skill_gate_bypass", default=False)
|
|
|
|
|
|
def _run_write_gate(build_staging):
|
|
"""Shared write gate: None to proceed, else a JSON tool result (blocked/staged).
|
|
``build_staging(wa) -> (payload, gist)`` runs only when staging. Fails open if
|
|
write_approval cannot be imported."""
|
|
try:
|
|
from tools import write_approval as wa
|
|
except Exception:
|
|
return None # fail open
|
|
decision = wa.evaluate_gate(wa.SKILLS)
|
|
if decision.allow:
|
|
return None
|
|
if decision.blocked:
|
|
return tool_error(decision.message, success=False)
|
|
payload, gist = build_staging(wa)
|
|
record = wa.stage_write(wa.SKILLS, payload, summary=gist, origin=wa.current_origin())
|
|
return json.dumps({"success": True, "staged": True, "pending_id": record["id"],
|
|
"gist": gist, "message": decision.message}, ensure_ascii=False)
|
|
|
|
|
|
def _apply_skill_write_gate(action, name, **payload_kwargs):
|
|
"""Flat-shape gate: stage the full kwargs so approval can replay them; bypassed during replay."""
|
|
if action not in _ACTION_HANDLERS or _skill_gate_bypass.get():
|
|
return None
|
|
def _staging(wa):
|
|
payload = {"action": action, "name": name,
|
|
**{k: v for k, v in payload_kwargs.items() if v is not None}}
|
|
gist_kw = {k: payload_kwargs.get(k) or ""
|
|
for k in ("content", "file_path", "old_string", "new_string")}
|
|
return payload, wa.skill_gist(action, name, **gist_kw)
|
|
return _run_write_gate(_staging)
|
|
|
|
|
|
_FLAT_OP_KEYS = ("content", "category", "file_path", "file_content", "old_string", "new_string",
|
|
"absorbed_into", "operations")
|
|
|
|
|
|
def _skill_manage_from(payload: Dict[str, Any], **extra) -> str:
|
|
"""Call ``skill_manage`` with the flat-shape fields (and absorbed_into/operations) of ``payload``."""
|
|
return skill_manage(
|
|
action=payload.get("action", ""), name=payload.get("name", ""),
|
|
replace_all=payload.get("replace_all", False),
|
|
**{k: payload.get(k) for k in _FLAT_OP_KEYS}, **extra)
|
|
|
|
|
|
def apply_skill_pending(payload: Dict[str, Any]) -> str:
|
|
"""Replay a staged skill write, bypassing the gate (the /skills approve handler)."""
|
|
token = _skill_gate_bypass.set(True)
|
|
try:
|
|
return _skill_manage_from(payload)
|
|
finally:
|
|
_skill_gate_bypass.reset(token)
|
|
|
|
|
|
# Sync push debounce: a burst of skill_manage writes collapses into one push on a daemon timer.
|
|
# One timer per profile home: in a multiplexed process B's write must not cancel A's pending push.
|
|
_sync_push_timers: Dict[str, threading.Timer] = {}
|
|
_sync_push_lock = threading.Lock()
|
|
_SYNC_PUSH_DEBOUNCE_S = 5.0
|
|
|
|
|
|
def _maybe_debounced_sync_push(skill_name: str) -> None:
|
|
"""Debounced best-effort sync push after a skill write; never blocks the caller. Skills not
|
|
opted into sync do nothing (no auth/network); ``maybe_push_skills`` enforces the access gate."""
|
|
try:
|
|
from tools.skill_usage import is_sync_enabled
|
|
if not is_sync_enabled(skill_name):
|
|
return
|
|
except Exception:
|
|
return
|
|
from hermes_constants import hermes_home_key
|
|
home_key = hermes_home_key()
|
|
# Timer threads start with empty ContextVars; without the scheduling turn's context the push would
|
|
# resolve the launch profile's home and credentials instead of the writing profile's.
|
|
ctx = _ctxvars.copy_context()
|
|
def _fire():
|
|
with suppress(Exception):
|
|
from tools.skills_sync_client import maybe_push_skills
|
|
maybe_push_skills(message=f"sync: {skill_name}")
|
|
with _sync_push_lock:
|
|
pending = _sync_push_timers.get(home_key)
|
|
if pending is not None:
|
|
pending.cancel() # only sets an Event; never raises
|
|
timer = threading.Timer(_SYNC_PUSH_DEBOUNCE_S, ctx.run, args=(_fire,))
|
|
timer.daemon = True
|
|
_sync_push_timers[home_key] = timer
|
|
timer.start()
|
|
|
|
|
|
def _act_patch(a):
|
|
"""Two shapes: old_string/new_string = targeted replacement (validated in _patch_skill so the
|
|
tool and the helper give the same guidance); content alone = full rewrite (the old 'edit')."""
|
|
if a["content"] and (a["old_string"] or a["new_string"] is not None):
|
|
return tool_error(_PATCH_EITHER_OR, success=False)
|
|
if a["content"]:
|
|
return _edit_skill(a["name"], a["content"])
|
|
return _patch_skill(a["name"], a["old_string"], a["new_string"], a["file_path"], a["replace_all"])
|
|
|
|
|
|
# action -> handler(args dict) returning a result dict, or a tool_error JSON string for
|
|
# argument-shape errors. "edit" is a legacy alias for a full rewrite (not in the schema).
|
|
_ACTION_HANDLERS = {
|
|
"create": lambda a: _create_skill(a["name"], a["content"], a["category"]),
|
|
"edit": lambda a: _edit_skill(a["name"], a["content"]),
|
|
"patch": _act_patch,
|
|
"delete": lambda a: _delete_skill(a["name"], absorbed_into=a["absorbed_into"]),
|
|
"write_file": lambda a: _write_file(a["name"], a["file_path"], a["file_content"]),
|
|
"remove_file": lambda a: _remove_file(a["name"], a["file_path"])}
|
|
|
|
|
|
def _record_success(action, name, result, *, file_path, absorbed_into, task_id,
|
|
session_id, ledger_before) -> None:
|
|
"""Best-effort post-mutation side effects (never break the tool): ledger, prompt-cache
|
|
clear, curator telemetry, debounced sync push."""
|
|
with suppress(Exception):
|
|
from tools import skill_ledger as _ledger
|
|
_post = _find_skill(name)
|
|
# delete: consolidation vs prune, and whether the recoverable archive handled it
|
|
_evidence = ({"absorbed_into": absorbed_into, "archived": bool(result.get("_archived"))}
|
|
if action == "delete" else {})
|
|
_evidence.update({k: v for k, v in (("session_id", session_id), ("file_path", file_path)) if v})
|
|
_ledger.record_mutation(
|
|
action, name, before=ledger_before if ledger_before is not None else [],
|
|
after_root=_post["path"] if _post else None, evidence=_evidence)
|
|
with suppress(Exception):
|
|
from agent.prompt_builder import clear_skills_system_prompt_cache
|
|
clear_skills_system_prompt_cache(clear_snapshot=True)
|
|
# Curator telemetry: only the background review fork marks a skill agent-created
|
|
# (foreground creates belong to the user). A recoverable curator archive keeps its
|
|
# record as STATE_ARCHIVED (`hermes curator status`/`restore`); only a hard delete forgets.
|
|
with suppress(Exception):
|
|
from tools.skill_usage import bump_patch, forget, record_created
|
|
# During the curator consolidation pass, a verified consolidation must be RECOVERABLE: archival into
|
|
# ~/.hermes/skills/.archive/ is documented as the maximum destructive action the curator may take,
|
|
# and `hermes curator restore` promises the skill can be brought back. Route through the recoverable
|
|
# archive primitive instead of permanent rmtree so a misjudged consolidation can be undone (#29912).
|
|
# Foreground, user-directed deletes keep their existing hard-delete semantics.
|
|
from tools.skill_provenance import is_background_review
|
|
if action == "create":
|
|
record_created(name, agent_created=is_background_review(),
|
|
task_id=task_id, session_id=session_id)
|
|
elif action in {"patch", "edit", "write_file", "remove_file"}:
|
|
bump_patch(name, action=action, task_id=task_id, session_id=session_id)
|
|
elif action == "delete" and not result.get("_archived"):
|
|
forget(name)
|
|
# Only AFTER the write gate passed (staged writes returned early): never push un-reviewed content.
|
|
with suppress(Exception):
|
|
_maybe_debounced_sync_push(name)
|
|
|
|
|
|
def skill_manage(
|
|
action: str, name: str, content: str = None, category: str = None, file_path: str = None,
|
|
file_content: str = None, old_string: str = None, new_string: str = None,
|
|
replace_all: bool = False, absorbed_into: str = None, task_id: str = None,
|
|
session_id: str = None, operations=None) -> str:
|
|
"""Dispatch to the action handler -> JSON string. ``operations`` (atomic batch shape,
|
|
see _skill_manage_batch) overrides the flat fields."""
|
|
if operations is not None:
|
|
return _skill_manage_batch(
|
|
operations, default_name=name or None, task_id=task_id, session_id=session_id)
|
|
if (preflight := _background_review_preflight(action, name)) is not None:
|
|
return json.dumps(preflight, ensure_ascii=False)
|
|
# Approval gate: skills are too large to review inline, so they always stage regardless
|
|
# of origin; bypassed when replaying an approved staged write.
|
|
args = dict(content=content, category=category, file_path=file_path, file_content=file_content,
|
|
old_string=old_string, new_string=new_string, replace_all=replace_all,
|
|
absorbed_into=absorbed_into)
|
|
if (gate_result := _apply_skill_write_gate(action, name, **args)) is not None:
|
|
return gate_result
|
|
if (shape_err := _op_shape_error(action, args)) is not None:
|
|
return tool_error(shape_err, success=False)
|
|
# Validate before the lock is keyed on the name, so a rejected name never touches .locks/
|
|
# (create takes a bare name; the other actions also accept ``category/name``).
|
|
if (name_err := _validate_name(name if action == "create" or not name else Path(name).name)) is not None:
|
|
return json.dumps(_err(name_err), ensure_ascii=False)
|
|
# A mutation is read-modify-write even when its action eventually delegates
|
|
# to a helper: guards, ledger capture, patch matching, validation, rollback,
|
|
# and the atomic replacement all belong to the same ownership window.
|
|
with _skill_mutation_lock(name):
|
|
# Ledger pre-capture: telemetry, not a gate — failures must NEVER block the mutation. delete
|
|
# destroys the whole package (consolidation may have re-homed support files first), so
|
|
# complete it from the newest curator backup or a restore is hollow.
|
|
# Audit ledger (tracker #79686 P3): capture the pre-mutation state of the skill directory so every
|
|
# mutation — any actor — lands in the append-only JSONL ledger with before/after blobs.
|
|
_ledger_before = None
|
|
with suppress(Exception):
|
|
from tools import skill_ledger as _ledger
|
|
_pre = _find_skill(name)
|
|
_ledger_before = _ledger.capture_before(
|
|
_pre["path"] if _pre else None, complete_package=(action == "delete"), skill=name)
|
|
handler = _ACTION_HANDLERS.get(action, lambda a: _err(
|
|
f"Unknown action '{action}'. Use: create, edit, patch, delete, write_file, remove_file"))
|
|
result = handler({"name": name, **args})
|
|
if isinstance(result, str):
|
|
return result # tool_error JSON for argument-shape problems (patch)
|
|
if result.get("success"):
|
|
_record_success(
|
|
action, name, result, file_path=file_path, absorbed_into=absorbed_into,
|
|
task_id=task_id, session_id=session_id, ledger_before=_ledger_before)
|
|
return json.dumps(result, ensure_ascii=False)
|
|
|
|
|
|
# --- OpenAI Function-Calling Schema -------------------------------------------
|
|
|
|
def _skill_manage_description(create_dir: str) -> str:
|
|
return (
|
|
"Create, update, or delete skills — your procedural memory for "
|
|
"recurring task types. The call is an operations array (a single "
|
|
"edit is a list of one); it applies atomically — any failure rolls "
|
|
"every touched skill back. Ops: create (full SKILL.md; lands in "
|
|
f"{create_dir}; must precede that skill's other "
|
|
"ops), patch (targeted old_string/new_string fix — preferred; "
|
|
"content alone REPLACES the whole file, read it via skill_view() "
|
|
"first), write_file/remove_file (supporting files), delete (sole "
|
|
"op only). Existing skills are modified wherever they live. Keep "
|
|
"the description's first 57 chars a self-contained trigger: 'Use "
|
|
"when <trigger>. <one-line behavior>.' Write lessons, not logs: "
|
|
"imperative rule + why, no PR numbers/dates/incident narration, one "
|
|
"rule per lesson, references/ named by topic (extend before adding). "
|
|
"skill_view() shows format conventions."
|
|
)
|
|
|
|
|
|
def _skill_manage_schema_overrides() -> dict:
|
|
"""Rebuild the create-dir hint from the ACTIVE profile at every get_definitions(): the
|
|
multiplexed gateway serves every profile from one process, so a path baked in at import
|
|
would name the launch profile's skills dir for everyone else (#95685)."""
|
|
return {"description": _skill_manage_description(_display_create_dir())}
|
|
|
|
|
|
_NAME = {"type": "string"}
|
|
_OLD_STRING = {"type": "string",
|
|
"description": "Text to find (same matching semantics as the patch tool)."}
|
|
_NEW_STRING = {"type": "string", "description": "Replacement; empty string deletes the match."}
|
|
_FILE_PATH = {
|
|
"type": "string",
|
|
"description": (
|
|
"Path RELATIVE to the skill's own directory, e.g. 'references/api.md' — no leading "
|
|
"slash, never absolute; first segment references/, templates/, scripts/, or assets/."
|
|
),
|
|
} # stated once (write_file); patch/remove_file point at it
|
|
|
|
|
|
def _op_schema(action: str, props: dict, required: tuple) -> dict:
|
|
"""One self-contained per-action op shape. ``additionalProperties: false`` is what lets a
|
|
grammar-constrained backend refuse another action's text slot outright."""
|
|
return {"type": "object", "additionalProperties": False,
|
|
"properties": {"name": _NAME, "action": {"type": "string", "enum": [action]}, **props},
|
|
"required": ["name", "action", *required]}
|
|
|
|
|
|
SKILL_MANAGE_SCHEMA = {
|
|
"name": "skill_manage",
|
|
# ONE advertised call shape (memory-tool pattern): the call IS an operations
|
|
# array. The legacy flat shape (top-level action/name/content/...) is still
|
|
# ACCEPTED for old transcripts and staged-write replay, but not advertised.
|
|
"description": _skill_manage_description("the profile's skills.create_dir"),
|
|
"parameters": {
|
|
"type": "object",
|
|
"properties": {
|
|
"operations": {
|
|
"type": "array",
|
|
"description": (
|
|
"Ordered ops; each names its target skill (lowercase, hyphens/underscores, "
|
|
"max 64 chars). Each action is its own shape; another action's text slot is invalid."
|
|
),
|
|
# Per-action branches, not one flat union: with one object holding content /
|
|
# new_string / file_content side by side, a 27B model that just used write_file
|
|
# kept emitting file_content on create and the whole batch rolled back (#112677).
|
|
"items": {"anyOf": [
|
|
_op_schema("create", {
|
|
"content": {"type": "string",
|
|
"description": "Full SKILL.md text (YAML frontmatter + markdown body)."},
|
|
"category": {"type": "string",
|
|
"description": "Optional category subdir (e.g. 'devops')."},
|
|
}, ("content",)),
|
|
_op_schema("patch", {
|
|
"old_string": _OLD_STRING, "new_string": _NEW_STRING,
|
|
"replace_all": {"type": "boolean",
|
|
"description": "Replace all occurrences (default false)."},
|
|
"file_path": {"type": "string",
|
|
"description": "Optional supporting file (write_file's shape); default SKILL.md."},
|
|
}, ("old_string", "new_string")),
|
|
_op_schema("patch", {
|
|
"content": {"type": "string",
|
|
"description": "Full SKILL.md rewrite (REPLACES the whole file; last resort)."},
|
|
}, ("content",)),
|
|
_op_schema("write_file", {
|
|
"file_path": _FILE_PATH,
|
|
"file_content": {"type": "string", "description": "Full text of the supporting file."},
|
|
}, ("file_path", "file_content")),
|
|
_op_schema("remove_file", {
|
|
"file_path": {"type": "string", "description": "Supporting file (write_file's shape)."},
|
|
}, ("file_path",)),
|
|
# `absorbed_into` stays in the delete shape: with additionalProperties:false a
|
|
# grammar-constrained backend would otherwise strip it and the curator's
|
|
# consolidation delete guard would fail-close every consolidation.
|
|
_op_schema("delete", {
|
|
"absorbed_into": {"type": "string",
|
|
"description": "Curator consolidation only: umbrella skill "
|
|
"that absorbed this one (must exist)."},
|
|
}, ()),
|
|
]},
|
|
},
|
|
# Also accepted, never advertised: the legacy flat single-op fields.
|
|
},
|
|
"required": ["operations"],
|
|
},
|
|
}
|
|
|
|
|
|
# --- Registry ---
|
|
from tools.registry import registry, tool_error
|
|
|
|
registry.register(
|
|
name="skill_manage", toolset="skills", schema=SKILL_MANAGE_SCHEMA, emoji="📝",
|
|
handler=lambda args, **kw: _skill_manage_from(
|
|
args, task_id=kw.get("task_id"), session_id=kw.get("session_id")),
|
|
dynamic_schema_overrides=_skill_manage_schema_overrides)
|
|
|
|
|
|
# ---- BEGIN PLUGIN-COMPAT (revert-scheduled; see COMPAT_MANIFEST.md) ----
|
|
# Names external plugins imported from this module before the Sep 2026 decomposition.
|
|
# Internal code MUST NOT use these (scripts/check_compat_pointers.py fails CI if it does).
|
|
# The whole block is removed by reverting the commit that added it.
|
|
|
|
|
|
_PLUGIN_COMPAT_LAZY = {
|
|
'mark_background_review_skill_read': ('tools.skill_manager_guards', 'mark_background_review_skill_read'),
|
|
}
|
|
|
|
|
|
def __getattr__(name): # PEP 562 — lazy so no import cycles
|
|
target = _PLUGIN_COMPAT_LAZY.get(name)
|
|
if target is None:
|
|
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
|
|
import importlib
|
|
from hermes_cli.plugin_compat import warn_once
|
|
warn_once(__name__, name, *target)
|
|
return getattr(importlib.import_module(target[0]), target[1])
|
|
# ---- END PLUGIN-COMPAT ----
|