feat: add declarative Hermes skills phase 1

This commit is contained in:
Ciphercat 2026-03-18 00:58:14 +00:00
commit a1b9295c8e
4 changed files with 276 additions and 1 deletions

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@ -89,6 +89,20 @@ Everything is configured in Nix. Config, documents, secrets, service — one `ni
# "SOUL.md" = ./documents/SOUL.md;
};
# ── Declarative skills (phase 1) ──
skills = {
bundled.enable = true;
optional = [
"creative/blender-mcp"
];
custom = {
repo-watch = {
category = "research";
source = ./skills/repo-watch;
};
};
};
# ── MCP servers ──
mcpServers = {
context7 = {
@ -209,6 +223,7 @@ You (Telegram/Discord/WhatsApp/Slack) → Gateway → Tools → Machine does thi
| `config` | attrset | `{}` | Declarative config (→ cli-config.yaml) |
| `configFile` | path | `null` | Use existing config file (overrides `config`) |
| `documents` | attrset | `{}` | Workspace files (string or path values) |
| `skills` | attrset | `{}` | Declarative Hermes skills (bundled, optional, custom local) |
| `environmentFiles` | list | `[]` | Secret env files (systemd EnvironmentFile) |
| `environment` | attrset | `{}` | Non-secret env vars |
| `authFile` | path | `null` | OAuth credentials file (auth.json) |

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@ -95,4 +95,21 @@
mkdir -p $out
echo "ok" > $out/result
'';
# Verify upstream source exposed to the module contains skills trees
skills-source-layout = pkgs.runCommand "hermes-skills-source-layout" { } ''
set -e
SRC=${hermes-agent.upstreamSrc}
echo "=== Checking upstream skills trees ==="
test -d "$SRC/skills" || (echo "FAIL: missing skills/ in upstream source"; exit 1)
test -d "$SRC/optional-skills" || (echo "FAIL: missing optional-skills/ in upstream source"; exit 1)
find "$SRC/skills" -name SKILL.md -print -quit | grep -q . || (echo "FAIL: no bundled SKILL.md found"; exit 1)
find "$SRC/optional-skills" -name SKILL.md -print -quit | grep -q . || (echo "FAIL: no optional SKILL.md found"; exit 1)
echo "PASS: upstream skills source layout present"
mkdir -p $out
echo "ok" > $out/result
'';
}

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@ -9,6 +9,7 @@ self:
let
cfg = config.services.hermes-agent;
inherit (self.packages.${pkgs.system}) hermes-agent;
hermesUpstreamSrc = cfg.package.upstreamSrc or hermes-agent.upstreamSrc;
# Deep-merge config type (same pattern as nix-openclaw)
deepConfigType = lib.types.mkOptionType {
@ -18,6 +19,136 @@ let
merge = _loc: defs: lib.foldl' lib.recursiveUpdate { } (map (d: d.value) defs);
};
customSkillType = lib.types.submodule {
options = {
category = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = "Category directory under skills/. If null, installs as a top-level skill.";
};
source = lib.mkOption {
type = lib.types.path;
description = "Path to a local skill directory containing SKILL.md and any linked files.";
};
};
};
customSkillSpecs = lib.mapAttrsToList (name: value: {
inherit name;
category = value.category;
source = toString value.source;
}) cfg.skills.custom;
skillsManaged = cfg.skills.bundled.enable || cfg.skills.optional != [ ] || cfg.skills.custom != { };
managedSkillsTree =
pkgs.runCommand "hermes-managed-skills"
{
bundledEnabled = if cfg.skills.bundled.enable then "1" else "0";
optionalSkillsJson = builtins.toJSON cfg.skills.optional;
customSkillsJson = builtins.toJSON customSkillSpecs;
src = hermesUpstreamSrc;
}
''
set -euo pipefail
mkdir -p "$out"
${pkgs.python3}/bin/python3 - <<'PY'
import json
import os
import shutil
from pathlib import Path
out = Path(os.environ["out"])
src = Path(os.environ["src"])
bundled_enabled = os.environ["bundledEnabled"] == "1"
optional_skills = json.loads(os.environ["optionalSkillsJson"])
custom_skills = json.loads(os.environ["customSkillsJson"])
managed = []
def copy_tree(src_dir: Path, dst_dir: Path):
if not src_dir.exists():
raise SystemExit(f"missing source path: {src_dir}")
if not src_dir.is_dir():
raise SystemExit(f"expected directory, got: {src_dir}")
if dst_dir.exists():
shutil.rmtree(dst_dir)
dst_dir.parent.mkdir(parents=True, exist_ok=True)
shutil.copytree(src_dir, dst_dir)
def skill_dirs_under(root: Path):
if not root.exists():
return []
dirs = []
for skill_md in root.rglob("SKILL.md"):
rel = skill_md.parent.relative_to(root)
if rel.parts and rel.parts[0].startswith('.'):
continue
dirs.append(rel)
return sorted(set(dirs), key=lambda p: tuple(p.parts))
if bundled_enabled:
bundled_root = src / "skills"
if not bundled_root.exists():
raise SystemExit(f"bundled skills directory missing: {bundled_root}")
for skill_rel in skill_dirs_under(bundled_root):
copy_tree(bundled_root / skill_rel, out / skill_rel)
managed.append(str(skill_rel))
for desc in bundled_root.rglob("DESCRIPTION.md"):
rel = desc.relative_to(bundled_root)
target = out / rel
target.parent.mkdir(parents=True, exist_ok=True)
shutil.copy2(desc, target)
for rel_str in optional_skills:
rel = Path(rel_str)
if rel.is_absolute() or ".." in rel.parts or len(rel.parts) == 0:
raise SystemExit(f"invalid optional skill path: {rel_str}")
src_dir = src / "optional-skills" / rel
if not src_dir.exists():
raise SystemExit(f"optional skill path not found: {rel_str}")
if not (src_dir / "SKILL.md").exists():
raise SystemExit(f"optional skill missing SKILL.md: {rel_str}")
copy_tree(src_dir, out / rel)
managed.append(str(rel))
if len(rel.parts) > 1:
desc_src = src / "optional-skills" / rel.parts[0] / "DESCRIPTION.md"
if desc_src.exists():
desc_dst = out / rel.parts[0] / "DESCRIPTION.md"
desc_dst.parent.mkdir(parents=True, exist_ok=True)
shutil.copy2(desc_src, desc_dst)
for spec in custom_skills:
name = spec["name"]
category = spec.get("category")
src_dir = Path(spec["source"])
rel = Path(category) / name if category else Path(name)
if not src_dir.exists():
raise SystemExit(f"custom skill source not found: {src_dir}")
if not (src_dir / "SKILL.md").exists():
raise SystemExit(f"custom skill missing SKILL.md: {src_dir}")
copy_tree(src_dir, out / rel)
managed.append(str(rel))
(out / ".nix-managed-skills.json").write_text(
json.dumps(sorted(set(managed)), indent=2) + "\n",
encoding="utf-8",
)
PY
'';
# Convert Nix attrset → YAML via JSON intermediary
# (Hermes reads YAML but YAML is a superset of JSON, so JSON works)
configJson = builtins.toJSON cfg.config;
@ -136,6 +267,57 @@ in
'';
};
# ── Skills (declarative materialization) ─────────────────────────────
skills = mkOption {
default = { };
description = ''
Declarative Hermes skills materialized into `${cfg.stateDir}/.hermes/skills`.
Phase 1 supports bundled upstream skills, selected optional skills,
and custom local skills.
'';
type = types.submodule {
options = {
bundled.enable = mkOption {
type = types.bool;
default = true;
description = ''
Install upstream bundled skills declaratively into HERMES_HOME/skills.
'';
};
optional = mkOption {
type = types.listOf types.str;
default = [ ];
example = [
"creative/storytelling"
"research/deep-research"
];
description = ''
Relative paths under upstream `optional-skills/` to install.
Example: `creative/some-skill`.
'';
};
custom = mkOption {
type = types.attrsOf customSkillType;
default = { };
description = ''
Custom local skills keyed by installed skill name. Each entry points
to a directory containing `SKILL.md` and any linked files.
'';
example = literalExpression ''
{
repo-watch = {
category = "research";
source = ./skills/repo-watch;
};
}
'';
};
};
};
};
# ── Secrets / environment ────────────────────────────────────────────
environmentFiles = mkOption {
type = types.listOf types.str;
@ -314,12 +496,15 @@ in
systemd.tmpfiles.rules = [
"d ${cfg.stateDir} 0750 ${cfg.user} ${cfg.group} - -"
"d ${cfg.stateDir}/.hermes 0750 ${cfg.user} ${cfg.group} - -"
"d ${cfg.stateDir}/.hermes/skills 0750 ${cfg.user} ${cfg.group} - -"
"d ${cfg.workingDirectory} 0750 ${cfg.user} ${cfg.group} - -"
"d ${builtins.dirOf cfg.logPath} 0750 ${cfg.user} ${cfg.group} - -"
];
# ── Activation: link config + documents into state dir ───────────────
# ── Activation: link config + documents + managed skills into state dir ──
system.activationScripts."hermes-agent-setup" = lib.stringAfter [ "users" ] ''
set -euo pipefail
# Link config file
install -o ${cfg.user} -g ${cfg.group} -m 0640 -D ${configFile} ${cfg.stateDir}/.hermes/cli-config.yaml
@ -345,6 +530,60 @@ in
install -o ${cfg.user} -g ${cfg.group} -m 0644 ${documentDerivation}/${name} ${cfg.workingDirectory}/${name}
'') cfg.documents
)}
# Reconcile Nix-managed skills without touching hub/runtime-managed state
${lib.optionalString skillsManaged ''
skills_dir=${cfg.stateDir}/.hermes/skills
managed_tree=${managedSkillsTree}
state_file="$skills_dir/.nix-managed-skills.json"
desired_file="$managed_tree/.nix-managed-skills.json"
install -d -o ${cfg.user} -g ${cfg.group} -m 0750 "$skills_dir"
skills_dir="$skills_dir" \
managed_tree="$managed_tree" \
state_file="$state_file" \
desired_file="$desired_file" \
${pkgs.python3}/bin/python3 - <<'PY'
import json
import os
import shutil
from pathlib import Path
skills_dir = Path(os.environ["skills_dir"])
managed_tree = Path(os.environ["managed_tree"])
state_file = Path(os.environ["state_file"])
desired_file = Path(os.environ["desired_file"])
old = []
if state_file.exists():
old = json.loads(state_file.read_text(encoding="utf-8"))
new = json.loads(desired_file.read_text(encoding="utf-8"))
for rel in sorted(set(old) - set(new), reverse=True):
target = skills_dir / rel
if target.exists():
shutil.rmtree(target)
for rel in new:
src = managed_tree / rel
dst = skills_dir / rel
if dst.exists():
shutil.rmtree(dst)
dst.parent.mkdir(parents=True, exist_ok=True)
shutil.copytree(src, dst)
for desc in managed_tree.rglob("DESCRIPTION.md"):
rel = desc.relative_to(managed_tree)
dst = skills_dir / rel
dst.parent.mkdir(parents=True, exist_ok=True)
shutil.copy2(desc, dst)
state_file.write_text(json.dumps(new, indent=2) + "\n", encoding="utf-8")
PY
chown -R ${cfg.user}:${cfg.group} "$skills_dir"
''}
'';
# ── systemd service ──────────────────────────────────────────────────

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@ -185,6 +185,10 @@ pythonPackages.buildPythonApplication {
done
'';
passthru = {
upstreamSrc = src;
};
meta = with lib; {
description = "The self-improving AI agent by Nous Research";
homepage = "https://github.com/NousResearch/hermes-agent";