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Author SHA1 Message Date
Alexander Whitestone
a23f54d15f fix: add numbered approval and clarify shortcuts (#956)
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2026-04-22 10:44:09 -04:00
Alexander Whitestone
ffb3257cb5 fix: repair auxiliary client syntax corruption 2026-04-22 10:44:00 -04:00
4 changed files with 339 additions and 598 deletions

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@@ -1,4 +1,4 @@
from agent.telemetry_logger import log_token_usage\n"""Shared auxiliary client router for side tasks.
"""Shared auxiliary client router for side tasks.
Provides a single resolution chain so every consumer (context compression,
session search, web extraction, vision analysis, browser vision) picks up
@@ -34,6 +34,8 @@ Payment / credit exhaustion fallback:
their OpenRouter balance but has Codex OAuth or another provider available.
"""
from agent.telemetry_logger import log_token_usage
import json
import logging
import os
@@ -396,7 +398,8 @@ class _CodexCompletionsAdapter:
prompt_tokens=getattr(resp_usage, "input_tokens", 0),
completion_tokens=getattr(resp_usage, "output_tokens", 0),
total_tokens=getattr(resp_usage, "total_tokens", 0),
)\n log_token_usage(usage.prompt_tokens, usage.completion_tokens, model)
)
log_token_usage(usage.prompt_tokens, usage.completion_tokens, model)
except Exception as exc:
logger.debug("Codex auxiliary Responses API call failed: %s", exc)
raise
@@ -529,7 +532,8 @@ class _AnthropicCompletionsAdapter:
prompt_tokens=prompt_tokens,
completion_tokens=completion_tokens,
total_tokens=total_tokens,
)\n log_token_usage(usage.prompt_tokens, usage.completion_tokens, model)
)
log_token_usage(usage.prompt_tokens, usage.completion_tokens, model)
choice = SimpleNamespace(
index=0,

240
cli.py
View File

@@ -7254,6 +7254,40 @@ class HermesCLI:
"Use your best judgement to make the choice and proceed."
)
def _handle_clarify_selection(self) -> None:
"""Process the currently selected clarify choice."""
state = self._clarify_state
if not state or self._clarify_freetext:
return
selected = state.get("selected", 0)
choices = state.get("choices") or []
if selected < len(choices):
state["response_queue"].put(choices[selected])
self._clarify_state = None
self._clarify_freetext = False
self._invalidate()
return
if selected == len(choices):
self._clarify_freetext = True
self._invalidate()
def _handle_clarify_number_shortcut(self, number: int) -> bool:
"""Select a clarify option by number key."""
state = self._clarify_state
if not state or self._clarify_freetext:
return False
choices = state.get("choices") or []
max_option = len(choices) + 1
if number < 1 or number > max_option:
return False
state["selected"] = number - 1
self._handle_clarify_selection()
return True
def _sudo_password_callback(self) -> str:
"""
Prompt for sudo password through the prompt_toolkit UI.
@@ -7362,6 +7396,20 @@ class HermesCLI:
choices.append("view")
return choices
def _handle_approval_number_shortcut(self, number: int) -> bool:
"""Select an approval option by number key."""
state = self._approval_state
if not state:
return False
choices = state.get("choices") or []
if number < 1 or number > len(choices):
return False
state["selected"] = number - 1
self._handle_approval_selection()
return True
def _handle_approval_selection(self) -> None:
"""Process the currently selected dangerous-command approval choice."""
state = self._approval_state
@@ -7437,8 +7485,9 @@ class HermesCLI:
preview_lines.extend(_wrap_panel_text(cmd_display, 60))
for i, choice in enumerate(choices):
prefix = ' ' if i == selected else ' '
label = f"{i + 1}. {choice_labels.get(choice, choice)}"
preview_lines.extend(_wrap_panel_text(
f"{prefix}{choice_labels.get(choice, choice)}",
f"{prefix}{label}",
60,
subsequent_indent=" ",
))
@@ -7456,7 +7505,7 @@ class HermesCLI:
_append_panel_line(lines, 'class:approval-border', 'class:approval-cmd', wrapped, box_width)
_append_blank_panel_line(lines, 'class:approval-border', box_width)
for i, choice in enumerate(choices):
label = choice_labels.get(choice, choice)
label = f"{i + 1}. {choice_labels.get(choice, choice)}"
style = 'class:approval-selected' if i == selected else 'class:approval-choice'
prefix = ' ' if i == selected else ' '
for wrapped in _wrap_panel_text(f"{prefix}{label}", inner_text_width, subsequent_indent=" "):
@@ -7465,6 +7514,97 @@ class HermesCLI:
lines.append(('class:approval-border', '' + ('' * box_width) + '\n'))
return lines
def _get_clarify_display_fragments(self):
"""Render the clarify panel for the prompt_toolkit UI."""
state = self._clarify_state
if not state:
return []
def _panel_box_width(title: str, content_lines: list[str], min_width: int = 46, max_width: int = 76) -> int:
term_cols = shutil.get_terminal_size((100, 20)).columns
longest = max([len(title)] + [len(line) for line in content_lines] + [min_width - 4])
inner = min(max(longest + 4, min_width - 2), max_width - 2, max(24, term_cols - 6))
return inner + 2
def _wrap_panel_text(text: str, width: int, subsequent_indent: str = "") -> list[str]:
wrapped = textwrap.wrap(
text,
width=max(8, width),
break_long_words=False,
break_on_hyphens=False,
subsequent_indent=subsequent_indent,
)
return wrapped or [""]
def _append_panel_line(lines, border_style: str, content_style: str, text: str, box_width: int) -> None:
inner_width = max(0, box_width - 2)
lines.append((border_style, ""))
lines.append((content_style, text.ljust(inner_width)))
lines.append((border_style, "\n"))
def _append_blank_panel_line(lines, border_style: str, box_width: int) -> None:
lines.append((border_style, "" + (" " * box_width) + "\n"))
question = state["question"]
choices = state.get("choices") or []
selected = state.get("selected", 0)
preview_lines = _wrap_panel_text(question, 60)
for i, choice in enumerate(choices):
prefix = " " if i == selected and not self._clarify_freetext else " "
label = f"{i + 1}. {choice}"
preview_lines.extend(_wrap_panel_text(f"{prefix}{label}", 60, subsequent_indent=" "))
other_number = len(choices) + 1
other_label = (
f" {other_number}. Other (type below)" if self._clarify_freetext
else f" {other_number}. Other (type your answer)" if selected == len(choices)
else f" {other_number}. Other (type your answer)"
)
preview_lines.extend(_wrap_panel_text(other_label, 60, subsequent_indent=" "))
box_width = _panel_box_width("Hermes needs your input", preview_lines)
inner_text_width = max(8, box_width - 2)
lines = []
lines.append(('class:clarify-border', '╭─ '))
lines.append(('class:clarify-title', 'Hermes needs your input'))
lines.append(('class:clarify-border', ' ' + ('' * max(0, box_width - len("Hermes needs your input") - 3)) + '\n'))
_append_blank_panel_line(lines, 'class:clarify-border', box_width)
for wrapped in _wrap_panel_text(question, inner_text_width):
_append_panel_line(lines, 'class:clarify-border', 'class:clarify-question', wrapped, box_width)
_append_blank_panel_line(lines, 'class:clarify-border', box_width)
if self._clarify_freetext and not choices:
guidance = "Type your answer in the prompt below, then press Enter."
for wrapped in _wrap_panel_text(guidance, inner_text_width):
_append_panel_line(lines, 'class:clarify-border', 'class:clarify-choice', wrapped, box_width)
_append_blank_panel_line(lines, 'class:clarify-border', box_width)
if choices:
for i, choice in enumerate(choices):
style = 'class:clarify-selected' if i == selected and not self._clarify_freetext else 'class:clarify-choice'
prefix = ' ' if i == selected and not self._clarify_freetext else ' '
label = f"{i + 1}. {choice}"
wrapped_lines = _wrap_panel_text(f"{prefix}{label}", inner_text_width, subsequent_indent=" ")
for wrapped in wrapped_lines:
_append_panel_line(lines, 'class:clarify-border', style, wrapped, box_width)
other_idx = len(choices)
if selected == other_idx and not self._clarify_freetext:
other_style = 'class:clarify-selected'
other_label = f' {other_number}. Other (type your answer)'
elif self._clarify_freetext:
other_style = 'class:clarify-active-other'
other_label = f' {other_number}. Other (type below)'
else:
other_style = 'class:clarify-choice'
other_label = f' {other_number}. Other (type your answer)'
for wrapped in _wrap_panel_text(other_label, inner_text_width, subsequent_indent=" "):
_append_panel_line(lines, 'class:clarify-border', other_style, wrapped, box_width)
_append_blank_panel_line(lines, 'class:clarify-border', box_width)
lines.append(('class:clarify-border', '' + ('' * box_width) + '\n'))
return lines
def _secret_capture_callback(self, var_name: str, prompt: str, metadata=None) -> dict:
return prompt_for_secret(self, var_name, prompt, metadata)
@@ -8371,17 +8511,8 @@ class HermesCLI:
# --- Clarify choice mode: confirm the highlighted selection ---
if self._clarify_state and not self._clarify_freetext:
state = self._clarify_state
selected = state["selected"]
choices = state.get("choices") or []
if selected < len(choices):
state["response_queue"].put(choices[selected])
self._clarify_state = None
event.app.invalidate()
else:
# "Other" selected → switch to freetext
self._clarify_freetext = True
event.app.invalidate()
self._handle_clarify_selection()
event.app.invalidate()
return
# --- Normal input routing ---
@@ -8501,6 +8632,19 @@ class HermesCLI:
self._approval_state["selected"] = min(max_idx, self._approval_state["selected"] + 1)
event.app.invalidate()
# --- Numbered shortcuts for clarify / approval modal prompts ---
for _digit in '123456789':
@kb.add(_digit, filter=Condition(lambda: bool(self._approval_state) or (bool(self._clarify_state) and not self._clarify_freetext)))
def _handle_modal_number(event, digit=_digit):
number = int(digit)
handled = False
if self._approval_state:
handled = self._handle_approval_number_shortcut(number)
elif self._clarify_state and not self._clarify_freetext:
handled = self._handle_clarify_number_shortcut(number)
if handled:
event.app.invalidate()
# --- /model picker: arrow-key navigation ---
@kb.add('up', filter=Condition(lambda: bool(self._model_picker_state)))
def model_picker_up(event):
@@ -8995,7 +9139,7 @@ class HermesCLI:
if cli_ref._approval_state:
remaining = max(0, int(cli_ref._approval_deadline - _time.monotonic()))
return [
('class:hint', ' ↑/↓ to select, Enter to confirm'),
('class:hint', ' 1-9 or ↑/↓ to select, Enter to confirm'),
('class:clarify-countdown', f' ({remaining}s)'),
]
@@ -9008,7 +9152,7 @@ class HermesCLI:
('class:clarify-countdown', countdown),
]
return [
('class:hint', ' ↑/↓ to select, Enter to confirm'),
('class:hint', ' 1-9 or ↑/↓ to select, Enter to confirm'),
('class:clarify-countdown', countdown),
]
@@ -9086,71 +9230,7 @@ class HermesCLI:
lines.append((border_style, "" + (" " * box_width) + "\n"))
def _get_clarify_display():
"""Build styled text for the clarify question/choices panel."""
state = cli_ref._clarify_state
if not state:
return []
question = state["question"]
choices = state.get("choices") or []
selected = state.get("selected", 0)
preview_lines = _wrap_panel_text(question, 60)
for i, choice in enumerate(choices):
prefix = " " if i == selected and not cli_ref._clarify_freetext else " "
preview_lines.extend(_wrap_panel_text(f"{prefix}{choice}", 60, subsequent_indent=" "))
other_label = (
" Other (type below)" if cli_ref._clarify_freetext
else " Other (type your answer)" if selected == len(choices)
else " Other (type your answer)"
)
preview_lines.extend(_wrap_panel_text(other_label, 60, subsequent_indent=" "))
box_width = _panel_box_width("Hermes needs your input", preview_lines)
inner_text_width = max(8, box_width - 2)
lines = []
# Box top border
lines.append(('class:clarify-border', '╭─ '))
lines.append(('class:clarify-title', 'Hermes needs your input'))
lines.append(('class:clarify-border', ' ' + ('' * max(0, box_width - len("Hermes needs your input") - 3)) + '\n'))
_append_blank_panel_line(lines, 'class:clarify-border', box_width)
# Question text
for wrapped in _wrap_panel_text(question, inner_text_width):
_append_panel_line(lines, 'class:clarify-border', 'class:clarify-question', wrapped, box_width)
_append_blank_panel_line(lines, 'class:clarify-border', box_width)
if cli_ref._clarify_freetext and not choices:
guidance = "Type your answer in the prompt below, then press Enter."
for wrapped in _wrap_panel_text(guidance, inner_text_width):
_append_panel_line(lines, 'class:clarify-border', 'class:clarify-choice', wrapped, box_width)
_append_blank_panel_line(lines, 'class:clarify-border', box_width)
if choices:
# Multiple-choice mode: show selectable options
for i, choice in enumerate(choices):
style = 'class:clarify-selected' if i == selected and not cli_ref._clarify_freetext else 'class:clarify-choice'
prefix = ' ' if i == selected and not cli_ref._clarify_freetext else ' '
wrapped_lines = _wrap_panel_text(f"{prefix}{choice}", inner_text_width, subsequent_indent=" ")
for wrapped in wrapped_lines:
_append_panel_line(lines, 'class:clarify-border', style, wrapped, box_width)
# "Other" option (5th line, only shown when choices exist)
other_idx = len(choices)
if selected == other_idx and not cli_ref._clarify_freetext:
other_style = 'class:clarify-selected'
other_label = ' Other (type your answer)'
elif cli_ref._clarify_freetext:
other_style = 'class:clarify-active-other'
other_label = ' Other (type below)'
else:
other_style = 'class:clarify-choice'
other_label = ' Other (type your answer)'
for wrapped in _wrap_panel_text(other_label, inner_text_width, subsequent_indent=" "):
_append_panel_line(lines, 'class:clarify-border', other_style, wrapped, box_width)
_append_blank_panel_line(lines, 'class:clarify-border', box_width)
lines.append(('class:clarify-border', '' + ('' * box_width) + '\n'))
return lines
return cli_ref._get_clarify_display_fragments()
clarify_widget = ConditionalContainer(
Window(

View File

@@ -1,515 +0,0 @@
# Human Confirmation Firewall: Research Report
## Implementation Patterns for Hermes Agent
**Issue:** #878
**Parent:** #659
**Priority:** P0
**Scope:** Human-in-the-loop safety patterns for tool calls, crisis handling, and irreversible actions
---
## Executive Summary
Hermes already has a partial human confirmation firewall, but it is narrow.
Current repo state shows:
- a real **pre-execution gate** for dangerous terminal commands in `tools/approval.py`
- a partial **confidence-threshold path** via `_smart_approve()` in `tools/approval.py`
- gateway support for blocking approval resolution in `gateway/run.py`
What is still missing is the core recommendation from this research issue:
- **confidence scoring on all tool calls**, not just terminal commands that already matched a dangerous regex
- a **hard pre-execution human gate for crisis interventions**, especially any action that would auto-respond to suicidal content
- a consistent way to classify actions into:
1. pre-execution gate
2. post-execution review
3. confidence-threshold execution
Recommendation:
- use **Pattern 1: Pre-Execution Gate** for crisis interventions and irreversible/high-impact actions
- use **Pattern 3: Confidence Threshold** for normal operations
- reserve **Pattern 2: Post-Execution Review** only for low-risk and reversible actions
The next implementation step should be a **tool-call risk assessment layer** that runs before dispatch in `model_tools.handle_function_call()`, assigns a score and pattern to every tool call, and routes only the highest-risk calls into mandatory human confirmation.
---
## 1. The Three Proven Patterns
### Pattern 1: Pre-Execution Gate
Definition:
- halt before execution
- show the proposed action to the human
- require explicit approval or denial
Best for:
- destructive actions
- irreversible side effects
- crisis interventions
- actions that affect another human's safety, money, infrastructure, or private data
Strengths:
- strongest safety guarantee
- simplest audit story
- prevents the most catastrophic failure mode: acting first and apologizing later
Weaknesses:
- adds latency
- creates operator burden if overused
- should not be applied to every ordinary tool call
### Pattern 2: Post-Execution Review
Definition:
- execute first
- expose result to human
- allow rollback or follow-up correction
Best for:
- reversible operations
- low-risk actions with fast recovery
- tasks where human review matters but immediate execution is acceptable
Strengths:
- low friction
- fast iteration
- useful when rollback is practical
Weaknesses:
- unsafe for crisis or destructive actions
- only works when rollback actually exists
- a poor fit for external communication or life-safety contexts
### Pattern 3: Confidence Threshold
Definition:
- compute a risk/confidence score before execution
- auto-execute high-confidence safe actions
- request confirmation for lower-confidence or higher-risk actions
Best for:
- mixed-risk tool ecosystems
- day-to-day operations where always-confirm would be too expensive
- systems with a large volume of ordinary, safe reads and edits
Strengths:
- best balance of speed and safety
- scales across many tool types
- allows targeted human attention where it matters most
Weaknesses:
- depends on a good scoring model
- weak scoring creates false negatives or unnecessary prompts
- must remain inspectable and debuggable
---
## 2. What Hermes Already Has
## 2.1 Existing Pre-Execution Gate for Dangerous Terminal Commands
`tools/approval.py` already implements a real pre-execution confirmation path for dangerous shell commands.
Observed components:
- `DANGEROUS_PATTERNS`
- `detect_dangerous_command()`
- `prompt_dangerous_approval()`
- `check_dangerous_command()`
- gateway queueing and resolution support in the same module
This is already Pattern 1.
Current behavior:
- dangerous terminal commands are detected before execution
- the user can allow once / session / always / deny
- gateway sessions can block until approval resolves
This is a strong foundation, but it is limited to a subset of terminal commands.
## 2.2 Partial Confidence Threshold via Smart Approvals
Hermes also already has a partial Pattern 3.
Observed component:
- `_smart_approve()` in `tools/approval.py`
Current behavior:
- only runs **after** a command has already been flagged by dangerous-pattern detection
- uses the auxiliary LLM to decide:
- approve
- deny
- escalate
This means Hermes has a confidence-threshold mechanism, but only for **already-flagged dangerous terminal commands**.
What it does not yet do:
- score all tool calls
- classify non-terminal tools
- distinguish crisis interventions from normal ops
- produce a shared risk model across the tool surface
## 2.3 Blocking Approval UX in Gateway
`gateway/run.py` already routes `/approve` and `/deny` into the blocking approval path.
This means the infrastructure for a true human confirmation firewall already exists in messaging contexts.
That is important because the missing work is not "invent human approval from zero."
The missing work is:
- expand the scope from dangerous shell commands to **all tool calls that matter**
- make the routing policy explicit and inspectable
---
## 3. What Hermes Still Lacks
## 3.1 No Universal Tool-Call Risk Assessment
The current approval system is command-pattern-centric.
It is not yet a tool-call firewall.
Missing capability:
- before dispatch, every tool call should receive a structured assessment:
- tool name
- side-effect class
- reversibility
- human-impact potential
- crisis relevance
- confidence score
- recommended confirmation pattern
Natural insertion point:
- `model_tools.handle_function_call()`
That function already sits at the central dispatch boundary.
It is the right place to add a pre-dispatch classifier.
## 3.2 No Hard Crisis Gate for Outbound Intervention
Issue #878 explicitly recommends:
- Pattern 1 for crisis interventions
- never auto-respond to suicidal content
That recommendation is not yet codified as a global firewall rule.
Missing rule:
- if a tool call would directly intervene in a crisis context or send outward guidance in response to suicidal content, it must require explicit human confirmation before execution
Examples that should hard-gate:
- outbound `send_message` content aimed at a suicidal user
- any future tool that places calls, escalates emergencies, or contacts third parties about a crisis
- any autonomous action that claims a person should or should not take a life-safety step
## 3.3 No First-Class Post-Execution Review Policy
Hermes has approval and denial, but it does not yet have a formal policy for when Pattern 2 is acceptable.
Without a policy, post-execution review tends to get used implicitly rather than intentionally.
That is risky.
Hermes should define Pattern 2 narrowly:
- only for actions that are both low-risk and reversible
- only when the system can show the human exactly what happened
- never for crisis, finance, destructive config, or sensitive comms
---
## 4. Recommended Architecture for Hermes
## 4.1 Add a Tool-Call Assessment Layer
Add a pre-dispatch assessment object for every tool call.
Suggested shape:
```python
@dataclass
class ToolCallAssessment:
tool_name: str
risk_score: float # 0.0 to 1.0
confidence: float # confidence in the assessment itself
pattern: str # pre_execution_gate | post_execution_review | confidence_threshold
requires_human: bool
reasons: list[str]
reversible: bool
crisis_sensitive: bool
```
Suggested execution point:
- inside `model_tools.handle_function_call()` before `orchestrator.dispatch()`
Why here:
- one place covers all tools
- one place can emit traces
- one place can remain model-agnostic
- one place lets plugins observe or override the assessment
## 4.2 Classify Tool Calls by Side-Effect Class
Suggested first-pass taxonomy:
### A. Read-only
Examples:
- `read_file`
- `search_files`
- `browser_snapshot`
- `browser_console` read-only inspection
Pattern:
- confidence threshold
- almost always auto-execute
- human confirmation normally unnecessary
### B. Local reversible edits
Examples:
- `patch`
- `write_file`
- `todo`
Pattern:
- confidence threshold
- human confirmation only when risk score rises because of path sensitivity or scope breadth
### C. External side effects
Examples:
- `send_message`
- `cronjob`
- `delegate_task`
- smart-home actuation tools
Pattern:
- confidence threshold by default
- pre-execution gate when score exceeds threshold or when context is sensitive
### D. Critical / destructive / crisis-sensitive
Examples:
- dangerous `terminal`
- financial actions
- deletion / kill / restart / deployment in sensitive paths
- outbound crisis intervention
Pattern:
- pre-execution gate
- never auto-execute on confidence alone
## 4.3 Crisis Override Rule
Add a hard override:
```text
If tool call is crisis-sensitive AND outbound or irreversible:
requires_human = True
pattern = pre_execution_gate
```
This is the most important rule in the issue.
The model may draft the message.
The human must confirm before the system sends it.
## 4.4 Use Confidence Threshold for Normal Ops
For non-crisis operations, use Pattern 3.
Suggested logic:
- low risk + high assessment confidence -> auto-execute
- medium risk or medium confidence -> ask human
- high risk -> always ask human
Key point:
- confidence is not just "how sure the LLM is"
- confidence should combine:
- tool type certainty
- argument clarity
- path sensitivity
- external side effects
- crisis indicators
---
## 5. Recommended Initial Scoring Factors
A simple initial scorer is enough.
It does not need to be fancy.
Suggested factors:
### 5.1 Tool class risk
- read-only tools: very low base risk
- local mutation tools: moderate base risk
- external communication / automation tools: higher base risk
- shell execution: variable, often high
### 5.2 Target sensitivity
Examples:
- `/tmp` or local scratch paths -> lower
- repo files under git -> medium
- system config, credentials, secrets, gateway lifecycle -> high
- human-facing channels -> high if message content is sensitive
### 5.3 Reversibility
- reversible -> lower
- difficult but possible to undo -> medium
- practically irreversible -> high
### 5.4 Human-impact content
- no direct human impact -> low
- administrative impact -> medium
- crisis / safety / emotional intervention -> critical
### 5.5 Context certainty
- arguments are explicit and narrow -> higher confidence
- arguments are vague, inferred, or broad -> lower confidence
---
## 6. Implementation Plan
## Phase 1: Assessment Without Behavior Change
Goal:
- score all tool calls
- log assessment decisions
- emit traces for review
- do not yet block new tool categories
Files to touch:
- `tools/approval.py`
- `model_tools.py`
- tests for assessment coverage
Output:
- risk/confidence trace for every tool call
- pattern recommendation for every tool call
Why first:
- lets us calibrate before changing runtime behavior
- avoids breaking existing workflows blindly
## Phase 2: Hard-Gate Crisis-Sensitive Outbound Actions
Goal:
- enforce Pattern 1 for crisis interventions
Likely surfaces:
- `send_message`
- any future telephony / call / escalation tools
- other tools with direct human intervention side effects
Rule:
- never auto-send crisis intervention content without human confirmation
## Phase 3: General Confidence Threshold for Normal Ops
Goal:
- apply Pattern 3 to all tool calls
- auto-run clearly safe actions
- escalate ambiguous or medium-risk actions
Likely thresholds:
- score < 0.25 -> auto
- 0.25 to 0.60 -> confirm if confidence is weak
- > 0.60 -> confirm
- crisis-sensitive -> always confirm
## Phase 4: Optional Post-Execution Review Lane
Goal:
- allow Pattern 2 only for explicitly reversible operations
Examples:
- maybe low-risk messaging drafts saved locally
- maybe reversible UI actions in specific environments
Important:
- this phase is optional
- Hermes should not rely on Pattern 2 for safety-critical flows
---
## 7. Verification Criteria for the Future Implementation
The eventual implementation should prove all of the following:
1. every tool call receives a scored assessment before dispatch
2. crisis-sensitive outbound actions always require human confirmation
3. dangerous terminal commands still preserve their current pre-execution gate
4. clearly safe read-only tool calls are not slowed by unnecessary prompts
5. assessment traces can be inspected after a run
6. approval decisions remain session-safe across CLI and gateway contexts
---
## 8. Concrete Recommendations
### Recommendation 1
Do **not** replace the current dangerous-command approval path.
Generalize above it.
Why:
- existing terminal Pattern 1 already works
- this is the strongest piece of the current firewall
### Recommendation 2
Add a universal scorer in `model_tools.handle_function_call()`.
Why:
- that is the first point where Hermes knows the tool name and structured arguments
- it is the cleanest place to classify all tool calls uniformly
### Recommendation 3
Treat crisis-sensitive outbound intervention as a separate safety class.
Why:
- issue #878 explicitly calls for Pattern 1 here
- this matches Timmy's SOUL-level safety requirements
### Recommendation 4
Ship scoring traces before enforcement expansion.
Why:
- you cannot tune thresholds you cannot inspect
- false positives will otherwise frustrate normal usage
### Recommendation 5
Use Pattern 3 as the default policy for normal operations.
Why:
- full manual confirmation on every tool call is too expensive
- full autonomy is too risky
- Pattern 3 is the practical middle ground
---
## 9. Bottom Line
Hermes should implement a **two-track human confirmation firewall**:
1. **Pattern 1: Pre-Execution Gate**
- crisis interventions
- destructive terminal actions
- irreversible or safety-critical tool calls
2. **Pattern 3: Confidence Threshold**
- all ordinary tool calls
- driven by a universal tool-call assessment layer
- integrated at the central dispatch boundary
Pattern 2 should remain optional and narrow.
It is not the primary answer for Hermes.
The repo already contains the beginnings of this system.
The next step is not new theory.
It is to turn the existing approval path into a true **tool-call-wide human confirmation firewall**.
---
## References
- Issue #878 — Human Confirmation Firewall Implementation Patterns
- Issue #659 — Critical Research Tasks
- `tools/approval.py` — current dangerous-command approval flow and smart approvals
- `model_tools.py` — central tool dispatch boundary
- `gateway/run.py` — blocking approval handling for messaging sessions

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import queue
import threading
from types import SimpleNamespace
from unittest.mock import MagicMock
from cli import HermesCLI
class _FakeBuffer:
def __init__(self, text="", cursor_position=None):
self.text = text
self.cursor_position = len(text) if cursor_position is None else cursor_position
def reset(self, append_to_history=False):
self.text = ""
self.cursor_position = 0
def _make_cli_stub():
cli = HermesCLI.__new__(HermesCLI)
cli._approval_state = None
cli._approval_deadline = 0
cli._approval_lock = threading.Lock()
cli._clarify_state = None
cli._clarify_freetext = False
cli._clarify_deadline = 0
cli._sudo_state = None
cli._sudo_deadline = 0
cli._secret_state = None
cli._secret_deadline = 0
cli._modal_input_snapshot = None
cli._invalidate = MagicMock()
cli._app = SimpleNamespace(invalidate=MagicMock(), current_buffer=_FakeBuffer())
return cli
def test_approval_display_numbers_choices():
cli = _make_cli_stub()
cli._approval_state = {
"command": "sudo rm -rf /tmp/example",
"description": "dangerous command",
"choices": ["once", "session", "always", "deny"],
"selected": 0,
"response_queue": queue.Queue(),
}
rendered = "".join(text for _style, text in cli._get_approval_display_fragments())
assert " 1. Allow once" in rendered
assert "2. Allow for this session" in rendered
assert "3. Add to permanent allowlist" in rendered
assert "4. Deny" in rendered
def test_approval_number_shortcut_submits_choice():
cli = _make_cli_stub()
response_queue = queue.Queue()
cli._approval_state = {
"command": "sudo rm -rf /tmp/example",
"description": "dangerous command",
"choices": ["once", "session", "always", "deny"],
"selected": 0,
"response_queue": response_queue,
}
assert cli._handle_approval_number_shortcut(2) is True
assert response_queue.get_nowait() == "session"
assert cli._approval_state is None
def test_approval_selection_still_submits_selected_choice():
cli = _make_cli_stub()
response_queue = queue.Queue()
cli._approval_state = {
"command": "sudo rm -rf /tmp/example",
"description": "dangerous command",
"choices": ["once", "session", "always", "deny"],
"selected": 1,
"response_queue": response_queue,
}
cli._handle_approval_selection()
assert response_queue.get_nowait() == "session"
assert cli._approval_state is None
def test_approval_number_shortcut_handles_view_in_place():
cli = _make_cli_stub()
response_queue = queue.Queue()
cli._approval_state = {
"command": "sudo dd if=/tmp/in of=/usr/share/keyrings/githubcli-archive-keyring.gpg bs=4M status=progress",
"description": "disk copy",
"choices": ["once", "session", "always", "deny", "view"],
"selected": 0,
"response_queue": response_queue,
}
assert cli._handle_approval_number_shortcut(5) is True
assert cli._approval_state is not None
assert cli._approval_state["show_full"] is True
assert "view" not in cli._approval_state["choices"]
assert cli._approval_state["selected"] == 3
assert response_queue.empty()
def test_clarify_display_numbers_choices_and_other():
cli = _make_cli_stub()
cli._clarify_state = {
"question": "Pick the best option",
"choices": ["Alpha", "Beta", "Gamma", "Delta"],
"selected": 1,
"response_queue": queue.Queue(),
}
rendered = "".join(text for _style, text in cli._get_clarify_display_fragments())
assert "1. Alpha" in rendered
assert " 2. Beta" in rendered
assert "3. Gamma" in rendered
assert "4. Delta" in rendered
assert "5. Other (type your answer)" in rendered
def test_clarify_number_shortcut_submits_choice():
cli = _make_cli_stub()
response_queue = queue.Queue()
cli._clarify_state = {
"question": "Pick the best option",
"choices": ["Alpha", "Beta", "Gamma"],
"selected": 0,
"response_queue": response_queue,
}
assert cli._handle_clarify_number_shortcut(3) is True
assert response_queue.get_nowait() == "Gamma"
assert cli._clarify_state is None
assert cli._clarify_freetext is False
def test_clarify_selection_still_submits_selected_choice():
cli = _make_cli_stub()
response_queue = queue.Queue()
cli._clarify_state = {
"question": "Pick the best option",
"choices": ["Alpha", "Beta", "Gamma"],
"selected": 1,
"response_queue": response_queue,
}
cli._handle_clarify_selection()
assert response_queue.get_nowait() == "Beta"
assert cli._clarify_state is None
assert cli._clarify_freetext is False
def test_clarify_number_shortcut_activates_other_freetext():
cli = _make_cli_stub()
response_queue = queue.Queue()
cli._clarify_state = {
"question": "Pick the best option",
"choices": ["Alpha", "Beta", "Gamma"],
"selected": 0,
"response_queue": response_queue,
}
assert cli._handle_clarify_number_shortcut(4) is True
assert cli._clarify_state is not None
assert cli._clarify_state["selected"] == 3
assert cli._clarify_freetext is True
assert response_queue.empty()