| 1 | package skill |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "encoding/json" |
| 6 | "fmt" |
| 7 | "strings" |
| 8 | |
| 9 | "reasonix/internal/tool" |
| 10 | ) |
| 11 | |
| 12 | // readSkillTool loads an inline skill body into context without running anything. |
| 13 | type readSkillTool struct { |
| 14 | store *Store |
| 15 | } |
| 16 | |
| 17 | // NewReadSkillTool builds a read-only inline-skill loader so a plan can consult |
| 18 | // playbooks without starting a subagent. |
| 19 | func NewReadSkillTool(store *Store) tool.Tool { return &readSkillTool{store: store} } |
| 20 | |
| 21 | func (*readSkillTool) Name() string { return tool.HostReadSkill } |
| 22 | |
| 23 | // ReadOnly is true: read_skill only renders an inline skill body, with no |
| 24 | // subagent or side effects. |
| 25 | func (*readSkillTool) ReadOnly() bool { return true } |
| 26 | |
| 27 | func (*readSkillTool) Description() string { |
| 28 | return "Read an inline skill or one of its embedded references without executing work. Pass the bare skill name. Subagent skills require run_skill or their dedicated tool." |
| 29 | } |
| 30 | |
| 31 | func (*readSkillTool) Schema() json.RawMessage { |
| 32 | return json.RawMessage(`{ |
| 33 | "type":"object", |
| 34 | "properties":{ |
| 35 | "name":{"type":"string","description":"Bare inline skill identifier from the skills catalog."}, |
| 36 | "arguments":{"type":"string","description":"Optional task arguments for reading the skill body."}, |
| 37 | "reference":{"type":"string","description":"Optional references/*.md path from an embedded skill's router. Reads only that page; omit to read the skill body."} |
| 38 | }, |
| 39 | "required":["name"] |
| 40 | }`) |
| 41 | } |
| 42 | |
| 43 | func (t *readSkillTool) Execute(_ context.Context, args json.RawMessage) (string, error) { |
| 44 | var p struct { |
| 45 | Name string `json:"name"` |
| 46 | Arguments string `json:"arguments"` |
| 47 | Reference string `json:"reference"` |
| 48 | } |
| 49 | if err := json.Unmarshal(args, &p); err != nil { |
| 50 | return "", fmt.Errorf("invalid args: %w", err) |
| 51 | } |
| 52 | name := cleanSkillName(p.Name) |
| 53 | if name == "" { |
| 54 | return "", fmt.Errorf("read_skill requires a 'name' argument (got %q, which is just a marker/tag)", p.Name) |
| 55 | } |
| 56 | sk, ok := t.store.Read(name) |
| 57 | if !ok { |
| 58 | return "", fmt.Errorf("unknown skill %q — available: %s", name, availableNames(t.store)) |
| 59 | } |
| 60 | if err := t.store.ValidateInvocation(sk); err != nil { |
| 61 | return "", fmt.Errorf("read_skill: %w", err) |
| 62 | } |
| 63 | sk = t.store.Prepare(sk) |
| 64 | if sk.RunAs == RunSubagent { |
| 65 | return "", fmt.Errorf("read_skill: skill %q is a subagent and must be executed, not read — use run_skill (or the dedicated %s tool)", name, name) |
| 66 | } |
| 67 | if reference := strings.TrimSpace(p.Reference); reference != "" { |
| 68 | if strings.TrimSpace(p.Arguments) != "" { |
| 69 | return "", fmt.Errorf("read_skill: reference and arguments are mutually exclusive") |
| 70 | } |
| 71 | return renderEmbeddedReference(sk, reference) |
| 72 | } |
| 73 | return renderInline(sk, strings.TrimSpace(p.Arguments)), nil |
| 74 | } |
| 75 |